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Products - (25001 Products)

Made in USA - 3/8" Shoulder Diam x 3-1/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3-1/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam


Item #: 60572336
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3-1/4
Drive Type Hex Socket
Material Grade 8
Material Alloy Steel
Head Height (Decimal Inch) 0.240 to 0.250
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620

$689.72

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Made in USA - 3/8" Shoulder Diam x 3-3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3-3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 88618319
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3-3/4
Drive Type Hex Socket
Material Grade 300; 18-8
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.240 to 0.250
Head Height (Inch) 1/4
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620
Head Diameter (Inch) 9/16
Thread Depth (Inch) 1/2

$22.03

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Made in USA - 3/8" Shoulder Diam x 3-3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3-3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam


Item #: 60572385
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3-3/4
Drive Type Hex Socket
Material Grade 8
Material Alloy Steel
Head Height (Decimal Inch) 0.240 to 0.250
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620

$382.82

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Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 88618194
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3/4
Drive Type Hex Socket
Material Grade 300; 18-8
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.240 to 0.250
Head Height (Inch) 1/4
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620
Head Diameter (Inch) 9/16
Thread Depth (Inch) 1/2

$8.90

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Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam


Item #: 60572088
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3/4
Drive Type Hex Socket
Material Grade 8
Material Alloy Steel
Head Height (Decimal Inch) 0.240 to 0.250
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620

$384.80

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Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18, Hex Socket Shoulder Screw - 6/6 Nylon, Uncoated - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/4" Shoulder Length, 5/16-18, Hex Socket Shoulder Screw - 6/6 Nylon, Uncoated


Item #: 37503687
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Thread Size 5/16-18
Shoulder Length (Inch) 3/4
Drive Type Hex Socket
Material Grade 6/6
Material Nylon
Finish/Coating Uncoated

$21.18

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 303 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 303 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam


Item #: 67314567
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 1/4-20
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 303
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Hex Key Size (Inch) 5/32
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2
Thread Depth (Inch) 7/16

$9.52

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 4140 Alloy Steel, Black Oxide Finish, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 4140 Alloy Steel, Black Oxide Finish, 7/32" Head Height x 1/2" Head Diam


Item #: 87613915
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (mm) 9.53
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 1/4-20
Shoulder Length (mm) 9.53
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 4140
Material Alloy Steel
Finish/Coating Black Oxide
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2

$24.58

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Hex Socket Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam


Item #: 01672195
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 1/4-20
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 416
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Hex Key Size (Inch) 5/32
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2
Thread Depth (Inch) 7/16

$15.90

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Slotted Precision Shoulder Screw - 303 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Slotted Precision Shoulder Screw - 303 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam


Item #: 67312769
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Slotted drive types are used with flat-blade drivers. They have one linear slot that runs the length of the head. Drivers must be centered in the slot during tightening or they will slip out and damage the fastener.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 1/4-20
Shoulder Length (Inch) 3/8
Drive Type Slotted
Material Grade 303
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2
Thread Depth (Inch) 7/16

$7.14

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Slotted Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Slotted Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam


Item #: 01671742
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Slotted drive types are used with flat-blade drivers. They have one linear slot that runs the length of the head. Drivers must be centered in the slot during tightening or they will slip out and damage the fastener.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 1/4-20
Shoulder Length (Inch) 3/8
Drive Type Slotted
Material Grade 416
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2
Thread Depth (Inch) 7/16

$12.49

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Torx Shoulder Screw - 300 Stainless Steel with Nylon Locking Patch, Uncoated, 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Torx Shoulder Screw - 300 Stainless Steel with Nylon Locking Patch, Uncoated, 1/2" Head Diam


Item #: 77927051
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Torx drive types are also known as star drive fasteners. They have a six-point star recess in the head that increases torque exertion, prevents cam out and boosts fastener life.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.Nylon is a lightweight, nonconductive material used on threads to prevent loosening.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (mm) 9.53
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 1/4-20
Shoulder Length (mm) 9.53
Shoulder Length (Inch) 3/8
Drive Type Torx
Material Grade 300
Material Stainless Steel with Nylon Locking Patch
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2190
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5000
Torx Drive Size T50

$7.87

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Torx Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 1/4-20 UNC, Torx Shoulder Screw - 416 Stainless Steel, Uncoated, 7/32" Head Height x 1/2" Head Diam


Item #: 45448909
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Torx drive types are also known as star drive fasteners. They have a six-point star recess in the head that increases torque exertion, prevents cam out and boosts fastener life.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 1/4-20
Shoulder Length (Inch) 3/8
Drive Type Torx
Material Grade 416
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2188
Head Height (Inch) 7/32
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5000
Head Diameter (Inch) 1/2
Torx Drive Size T50
Thread Depth (Inch) 7/16

$15.82

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Precision Shoulder Screw - 4140 Alloy Steel, Black Oxide Finish, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Precision Shoulder Screw - 4140 Alloy Steel, Black Oxide Finish, 1/4" Head Height x 9/16" Head Diam


Item #: 87613865
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (mm) 9.53
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (mm) 9.53
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 4140
Material Alloy Steel
Finish/Coating Black Oxide
Head Height (Decimal Inch) 0.2500
Head Height (Inch) 1/4
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5625
Head Diameter (Inch) 9/16

$18.40

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 01672237
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 5/16-18
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 416
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2500
Head Height (Inch) 1/4
Thread Standard UNC
Hex Key Size (Inch) 3/16
Head Diameter (Decimal Inch) 0.5625
Head Diameter (Inch) 9/16
Thread Depth (Inch) 1/2

$19.80

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 88618160
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 300; 18-8
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.240 to 0.250
Head Height (Inch) 1/4
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620
Head Diameter (Inch) 9/16
Thread Depth (Inch) 1/2

$8.03

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam


Item #: 60572054
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (Inch) 3/8
Drive Type Hex Socket
Material Grade 8
Material Alloy Steel
Head Height (Decimal Inch) 0.240 to 0.250
Thread Standard UNC
Fastener Standard ANSI B18.3; BS 2470
Hex Key Size (Inch) 3/16
Hex Key Size (Decimal Inch) 0.1875
Head Diameter (Decimal Inch) 0.5430 to 0.5620

$370.28

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Phillips Precision Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Phillips Precision Shoulder Screw - 300, 18-8 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 72500754
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Phillips drive types have a cross-shaped slot and are used with Phillips drivers. To prevent damage to the fastener head and fastened surface, the drive design forces the driver to cam out when the fastener is sufficiently tightened.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 5/16-18
Shoulder Length (Inch) 3/8
Drive Type Phillips
Material Grade 300; 18-8
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2500
Head Height (Inch) 1/4
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5625
Head Diameter (Inch) 9/16
Phillips Drive Size #4

$5.38

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Slotted Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Slotted Precision Shoulder Screw - 416 Stainless Steel, Uncoated, 1/4" Head Height x 9/16" Head Diam


Item #: 01671783
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Slotted drive types are used with flat-blade drivers. They have one linear slot that runs the length of the head. Drivers must be centered in the slot during tightening or they will slip out and damage the fastener.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.
Product Specifications
Type Precision Shoulder Screw
System of Measurement Inch
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3745
Thread Size 5/16-18
Shoulder Length (Inch) 3/8
Drive Type Slotted
Material Grade 416
Material Stainless Steel
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2500
Head Height (Inch) 1/4
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5625
Head Diameter (Inch) 9/16
Thread Depth (Inch) 1/2

$15.50

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Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Torx Shoulder Screw - 300 Stainless Steel with Nylon Locking Patch, Uncoated, 9/16" Head Diam - Benchmark Tooling

Made in USA - 3/8" Shoulder Diam x 3/8" Shoulder Length, 5/16-18 UNC, Torx Shoulder Screw - 300 Stainless Steel with Nylon Locking Patch, Uncoated, 9/16" Head Diam


Item #: 77927028
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Torx drive types are also known as star drive fasteners. They have a six-point star recess in the head that increases torque exertion, prevents cam out and boosts fastener life.
Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.Nylon is a lightweight, nonconductive material used on threads to prevent loosening.
Product Specifications
Type Shoulder Screw
System of Measurement Inch
Shoulder Diameter (mm) 9.53
Shoulder Diameter (Inch) 3/8
Shoulder Diameter (Decimal Inch) 0.3750
Thread Size 5/16-18
Shoulder Length (mm) 9.53
Shoulder Length (Inch) 3/8
Drive Type Torx
Material Grade 300
Material Stainless Steel with Nylon Locking Patch
Finish/Coating Uncoated
Head Height (Decimal Inch) 0.2500
Thread Standard UNC
Head Diameter (Decimal Inch) 0.5625
Torx Drive Size T50

$8.85

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