Email: sales@benchmarktooling.com | Phone: (888) 988-8820
We ship from multiple warehouses throughout the USA
to get you what you need as fast as possible!
Millions of items in stock!
Fast online checkout - No account required
Cart 0
Cart 0

Fastening Products - Nuts For Sale | Benchmark Tooling - (4439 Products)

Made in USA - 5/8-18 UNF Grade 2 Steel Slotted Locknut - 15/16" Width Across Flats, 35/64" High, Zinc-Plated Finish - Benchmark Tooling

Made in USA - 5/8-18 UNF Grade 2 Steel Slotted Locknut - 15/16" Width Across Flats, 35/64" High, Zinc-Plated Finish


Item #: 66433194
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Slotted locknuts are thinner than castle locknuts and have slots along the outside diameter of the nut. They are locked into place with a cotter pin.
Product Specifications
System of Measurement Inch
Type Slotted Lock Nut
Material Steel
Thread Size 5/8-18
Height (Inch) 35/64
Material Grade Grade 2
Finish/Coating Zinc-Plated
Thread Direction Right Hand
Width Across Flats (Inch) 15/16
Thread Standard UNF
Military Specification Does Not Meet Military Specifications

$52.92

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 7/8-9 UNC 316 Hex Lock Nut with Nylon Insert - 63/64" High - Benchmark Tooling

Value Collection - 7/8-9 UNC 316 Hex Lock Nut with Nylon Insert - 63/64" High


Item #: 70962840
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Stainless Steel
Thread Size 7/8-9
Height (Inch) 63/64
Material Grade 316
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Decimal Inch) 1-1/4
Thread Standard UNC
Military Specification Does Not Meet Military Specifications

$213.63

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 5/8-11 UNC Grade 8 Hex Lock Nut with Nylon Insert - 15/16" Width Across Flats, 3/4" High, Uncoated - Benchmark Tooling

Value Collection - 5/8-11 UNC Grade 8 Hex Lock Nut with Nylon Insert - 15/16" Width Across Flats, 3/4" High, Uncoated


Item #: 61434866
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 5/8-11
Height (Inch) 3/4
Material Grade Grade 8
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 15/16
Thread Standard UNC
Military Specification Does Not Meet Military Specifications

$0.80

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 3/8-24 Grade C Hex Lock Nut with Distorted Thread - Zinc Yellow with Wax Finish - Benchmark Tooling

Made in USA - 3/8-24 Grade C Hex Lock Nut with Distorted Thread - Zinc Yellow with Wax Finish


Item #: 39804539
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 3/8-24
Material Grade Grade C
Finish/Coating Zinc Yellow with Wax
Thread Direction Right Hand
Locking Style Distorted Thread

$45.73

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 9/16-18 UNF Grade 8 Hex Lock Nut with Nylon Insert - 7/8" Width Across Flats, 41/64" High, Zinc Yellow Dichromate Finish - Benchmark Tooling

Value Collection - 9/16-18 UNF Grade 8 Hex Lock Nut with Nylon Insert - 7/8" Width Across Flats, 41/64" High, Zinc Yellow Dichromate Finish


Item #: 52593621
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 9/16-18
Height (Inch) 41/64
Material Grade Grade 8
Finish/Coating Zinc Yellow Dichromate
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 7/8
Thread Standard UNF
Military Specification Does Not Meet Military Specifications

$101.46

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Flex-Loc - 5/8-11 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top - Uncoated, Meets Military Specifications - Benchmark Tooling

Flex-Loc - 5/8-11 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top - Uncoated, Meets Military Specifications


Item #: 67515247
Brand: Flex-Loc
Model #: 30FA-1011
Exact Tooling IR#: 04

Features and Benefits

Heavy hex lock nuts have thicker heads than standard hex nuts. They are used with large-diameter, high-strength bolts.
Product Specifications
System of Measurement Inch
Type Heavy Hex Lock Nut
Material Steel
Thread Size 5/8-11
Height (Decimal Inch) 0.6340
Material Grade Grade 2
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.9900
Width Across Flats (Decimal Inch) 1.0020
Thread Standard UNC
Thread Fit Class 2B
Fastener Standard MIL-S-7742
Military Specification Meets Military Specifications

$562.02

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - #6-32 UNC 18-8 Hex Lock Nut with Nylon Insert - 5/16" Width Across Flats, 3/16" High - Benchmark Tooling

Value Collection - #6-32 UNC 18-8 Hex Lock Nut with Nylon Insert - 5/16" Width Across Flats, 3/16" High


Item #: 67337287
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Stainless Steel
Thread Size #6-32
Height (Inch) 3/16
Material Grade 18-8
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 5/16
Thread Standard UNC
Military Specification Does Not Meet Military Specifications

$7.63

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 1-1/8 - 12 UNF Grade 8 Hex Lock Nut with Nylon Insert - 1-5/8" Width Across Flats, 1-11/64" High, Uncoated - Benchmark Tooling

Value Collection - 1-1/8 - 12 UNF Grade 8 Hex Lock Nut with Nylon Insert - 1-5/8" Width Across Flats, 1-11/64" High, Uncoated


Item #: 61437455
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 1-1/8 - 12
Height (Inch) 1-11/64
Material Grade Grade 8
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 1-5/8
Thread Standard UNF
Military Specification Does Not Meet Military Specifications

$12.58

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Flex-Loc - 3/8-16 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top - Cadmium-Plated Finish, Meets Military Specifications - Benchmark Tooling

Flex-Loc - 3/8-16 UNC Grade 2 Heavy Hex Lock Nut with Expanding Flex Top - Cadmium-Plated Finish, Meets Military Specifications


Item #: 67543405
Brand: Flex-Loc
Model #: 21FA-616
Exact Tooling IR#: 04

Features and Benefits

Heavy hex lock nuts have thicker heads than standard hex nuts. They are used with large-diameter, high-strength bolts.
Product Specifications
System of Measurement Inch
Type Heavy Hex Lock Nut
Material Steel
Thread Size 3/8-16
Height (Decimal Inch) 0.3840
Material Grade Grade 2
Finish/Coating Cadmium-Plated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.6160
Width Across Flats (Decimal Inch) 0.6270
Thread Standard UNC
Thread Fit Class 2B
Fastener Standard MIL-S-7742
Military Specification Meets Military Specifications

$147.09

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 5/8-11 UNC Grade 2 Steel Slotted Locknut - 15/16" Width Across Flats, 35/64" High, Plain Finish - Benchmark Tooling

Value Collection - 5/8-11 UNC Grade 2 Steel Slotted Locknut - 15/16" Width Across Flats, 35/64" High, Plain Finish


Item #: 66442864
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Slotted locknuts are thinner than castle locknuts and have slots along the outside diameter of the nut. They are locked into place with a cotter pin.
Product Specifications
System of Measurement Inch
Type Slotted Lock Nut
Material Steel
Thread Size 5/8-11
Height (Inch) 35/64
Material Grade Grade 2
Finish/Coating Plain
Width Across Flats (Inch) 15/16
Thread Standard UNC

$17.39

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Flex-Loc - #6-32 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - 5/16" Width Across Flats, 3/16" High, Cadmium-Plated Finish, Meets Military Specifications - Benchmark Tooling

Flex-Loc - #6-32 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - 5/16" Width Across Flats, 3/16" High, Cadmium-Plated Finish, Meets Military Specifications


Item #: 67516369
Brand: Flex-Loc
Model #: 21FA-632
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size #6-32
Height (Inch) 3/16
Height (Decimal Inch) 0.1875
Material Grade Grade 2
Finish/Coating Cadmium-Plated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.3050
Width Across Flats (Inch) 5/16
Width Across Flats (Decimal Inch) 0.3125
Thread Standard UNJC
Thread Fit Class 3B
Fastener Standard AS8879
Military Specification Meets Military Specifications

$70.03

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - M14x2.00 Metric Coarse Grade 8 Hex Lock Nut with Nylon Insert - 14mm High, Zinc-Plated Finish - Benchmark Tooling

Value Collection - M14x2.00 Metric Coarse Grade 8 Hex Lock Nut with Nylon Insert - 14mm High, Zinc-Plated Finish


Item #: 61434189
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Metric
Type Hex Lock Nut
Material Steel
Thread Size M14x2.00
Height (mm) 14.00
Material Grade Grade 8
Finish/Coating Zinc-Plated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (mm) 22.00
Thread Standard Metric Coarse
Fastener Standard DIN 985
Military Specification Does Not Meet Military Specifications

$3.18

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Bowmalloy - 3/4-16 Grade 9 Steel Hex Lock Nut - 1-3/32" Width Across Flats, Bowma-Guard Finish - Benchmark Tooling

Bowmalloy - 3/4-16 Grade 9 Steel Hex Lock Nut - 1-3/32" Width Across Flats, Bowma-Guard Finish


Item #: 66812322
Brand: Bowmalloy
Model #: BOW36802
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 3/4-16
Height (Decimal Inch) 0.7260
Material Grade Grade 9
Finish/Coating Bowma-Guard
Thread Direction Right Hand
Width Across Flats (Inch) 1-3/32
Width Across Flats (Decimal Inch) 1.0938

$141.89

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - M18x2.50 Metric Coarse 316 & Austenitic Grade A4 Hex Lock Nut with Nylon Insert - 18.5mm High, Uncoated - Benchmark Tooling

Value Collection - M18x2.50 Metric Coarse 316 & Austenitic Grade A4 Hex Lock Nut with Nylon Insert - 18.5mm High, Uncoated


Item #: 65094302
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Stainless Steel
Thread Size M18x2.50
Height (mm) 18.50
Material Grade 316; Austenitic Grade A4
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (mm) 27.00
Thread Standard Metric Coarse
Fastener Standard DIN 985
Military Specification Does Not Meet Military Specifications

$37.50

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Flex-Loc - #8-32 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - 3/16" High, Cadmium-Plated Finish, Meets Military Specifications - Benchmark Tooling

Flex-Loc - #8-32 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - 3/16" High, Cadmium-Plated Finish, Meets Military Specifications


Item #: 67517367
Brand: Flex-Loc
Model #: 21FK-832
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size #8-32
Height (Inch) 3/16
Height (Decimal Inch) 0.1875
Material Grade Grade 2
Finish/Coating Cadmium-Plated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.3360
Width Across Flats (Decimal Inch) 0.3450
Thread Standard UNJC
Thread Fit Class 3B
Fastener Standard AS8879
Military Specification Meets Military Specifications

$57.25

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Flex-Loc - 1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top - Uncoated, Meets Military Specifications - Benchmark Tooling

Flex-Loc - 1/2-13 UNC 18-8 Heavy Hex Lock Nut with Expanding Flex Top - Uncoated, Meets Military Specifications


Item #: 67544320
Brand: Flex-Loc
Model #: 50FK-813
Exact Tooling IR#: 04

Features and Benefits

Heavy hex lock nuts have thicker heads than standard hex nuts. They are used with large-diameter, high-strength bolts.
Product Specifications
System of Measurement Inch
Type Heavy Hex Lock Nut
Material Stainless Steel
Thread Size 1/2-13
Height (Decimal Inch) 0.3280
Material Grade 18-8
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.8030
Width Across Flats (Decimal Inch) 0.8140
Thread Standard UNC
Thread Fit Class 2B
Fastener Standard MIL-S-7742
Military Specification Meets Military Specifications

$1,302.96

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - #10-24 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - Cadmium-Plated Finish, Meets Military Specifications - Benchmark Tooling

Value Collection - #10-24 UNJC Grade 2 Hex Lock Nut with Expanding Flex Top - Cadmium-Plated Finish, Meets Military Specifications


Item #: 70999263
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size #10-24
Height (Decimal Inch) 0.2430
Material Grade Grade 2
Finish/Coating Cadmium-Plated
Thread Direction Right Hand
Locking Style Expanding Flex Top
Flange Diameter (Decimal Inch) 0.3670
Width Across Flats (Decimal Inch) 0.3760
Thread Standard UNJC
Thread Fit Class 3B
Fastener Standard IFI 100/107; NASM 25027
Military Specification Meets Military Specifications

$44.62

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 1/2-20 UNF Grade 8 Hex Lock Nut with Nylon Insert - 3/4" Width Across Flats, 19/32" High, Uncoated - Benchmark Tooling

Value Collection - 1/2-20 UNF Grade 8 Hex Lock Nut with Nylon Insert - 3/4" Width Across Flats, 19/32" High, Uncoated


Item #: 61433710
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 1/2-20
Height (Inch) 19/32
Material Grade Grade 8
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 3/4
Thread Standard UNF
Military Specification Does Not Meet Military Specifications

$0.53

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 9/16-12 UNC Grade 2 Two Way Lock Nut with Distorted Thread - 7/8" Width Across Flats, 31/64" High, Zinc-Plated Finish - Benchmark Tooling

Value Collection - 9/16-12 UNC Grade 2 Two Way Lock Nut with Distorted Thread - 7/8" Width Across Flats, 31/64" High, Zinc-Plated Finish


Item #: 61479051
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Two-way lock nuts have indentations in the flats that distort threads, which creates a locking action.
Product Specifications
System of Measurement Inch
Type Two Way Lock Nut
Material Steel
Thread Size 9/16-12
Height (Inch) 31/64
Material Grade Grade 2
Finish/Coating Zinc-Plated
Thread Direction Right Hand
Locking Style Distorted Thread
Distorted Thread Type Center Lock
Width Across Flats (Inch) 7/8
Thread Standard UNC
Military Specification Does Not Meet Military Specifications

$2.08

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 1-1/2 - 12 UNF Grade 8 Hex Lock Nut with Nylon Insert - 2-3/16" Width Across Flats, 1-39/64" High, Uncoated - Benchmark Tooling

Value Collection - 1-1/2 - 12 UNF Grade 8 Hex Lock Nut with Nylon Insert - 2-3/16" Width Across Flats, 1-39/64" High, Uncoated


Item #: 61436077
Brand: Value Collection
Exact Tooling IR#: 04

Features and Benefits

Hex lock nuts are the most common type of lock nut. They have six uniform sides that create a flat bearing surface.
Product Specifications
System of Measurement Inch
Type Hex Lock Nut
Material Steel
Thread Size 1-1/2 - 12
Height (Inch) 1-39/64
Material Grade Grade 8
Finish/Coating Uncoated
Thread Direction Right Hand
Locking Style Insert
Insert Material Nylon
Width Across Flats (Inch) 2-3/16
Thread Standard UNF
Military Specification Does Not Meet Military Specifications

$29.35

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It