Fasteners

Industrial Fasteners for Construction, Fabrication & Maintenance

Industrial fasteners are the backbone of mechanical fastening, anchoring, and structural assembly across a wide range of industries. Our comprehensive selection is engineered to meet the rigorous demands of industrial, fleet, and maintenance, repair, and operations (MRO) applications. Whether you require metric or standard sizes, our fasteners ensure compatibility and consistent sizing for seamless repair, replacement, and new installations. From heavy-duty construction projects to precision fabrication and ongoing equipment service, our hardware solutions support every phase of your operation. Explore a broad inventory designed for structural integrity, mechanical reliability, and secure anchoring—empowering your team to work efficiently and safely, no matter the jobsite or application.

Bolts, Screws & Threaded Rod

Discover our extensive range of bolts, screws, and threaded rod, available in both standard and metric dimensions. These essential fasteners provide reliable mechanical connections for structural assembly, equipment installation, and repair. For more details, visit our Bolts, Screws & Threaded Rod category.

Nuts, Washers & Locking Hardware

Ensure secure fastening and load distribution with our selection of nuts, washers, and locking hardware. Designed for compatibility with a variety of bolts and threaded rods, these components are critical for maintaining joint integrity in demanding environments. Explore the full range in our Nuts, Washers & Locking Hardware section.

Anchors & Threaded Inserts

Achieve dependable anchoring in concrete, masonry, and other substrates with our anchors and threaded inserts. These solutions are ideal for structural and mechanical applications where secure, long-lasting fastening is required. Learn more in our Anchors & Threaded Inserts category.

Pins, Retaining Rings & Rivets

For applications requiring precise alignment, retention, or permanent assembly, our pins, retaining rings, and rivets deliver consistent performance. These specialty fasteners are essential for equipment maintenance, fabrication, and assembly tasks. Visit our Pins, Retaining Rings & Rivets page for more information.

Specialty Fasteners & Hardware

Address unique fastening challenges with our specialty fasteners and hardware, including tamper-resistant, high-strength, and application-specific solutions. Support your fabrication, installation, and service needs with products engineered for reliability and ease of use. Browse our Specialty Fasteners & Hardware category for tailored options.

Value Propositions

Broad selection of standard and metric fasteners for every application
Suitable for industrial, fleet, and maintenance use
Structural, mechanical, and anchoring solutions for diverse environments
Consistent sizing for efficient repair and replacement
Supports fabrication, installation, and equipment service

Display items per page

LOCK NUT NYLON UNC ZINC #4-40 GR 2

LN440

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: #4-40.
Zinc plated.

$16.05
$0.1605

+ -

LOCK NUT NYLON UNC ZINC 5/16"-18 GR 2

LN5618

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 5/16"-18.
Zinc plated.

$27.75
$0.2775

+ -

LOCK NUT NYLON UNC STAINLESS 5/16"-18

LN5618SS

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with stainless steel machine screws and bolts.
Reusable.
The nylon collar will begin to deteriorate at temperature from 150 to 350° F.
Made form 18-8 or equivalent stainless steel.
Size: 5/16"-18.

$40.00
$0.40

+ -

LOCK NUT NYLON UNC ZINC 5/16"-24 GR 2

LN5624

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 5/16"-24.
Zinc plated.

$25.80
$0.258

+ -

LOCK NUT NYLON UNF ZINC 5/8"-18 GR 2

LN5818

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 5/8"-18.
Zinc plated.

$26.1975
$1.0479

+ -

LOCK NUT NYLON UNC ZINC 5/8"-11 GR 2

LN5811

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 5/8"-11.
Zinc plated.

$24.9725
$0.9989

+ -

LOCK NUT NYLON UNC ZINC #6-32 GR 2

LN632

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: #6-32.
Zinc plated.

$19.80
$0.198

+ -

LOCK NUT NYLON UNC STAINLESS #6-32

LN632SS

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with stainless steel machine screws and bolts.
Reusable.
The nylon collar will begin to deteriorate at temperature from 150 to 350° F.
Made form 18-8 or equivalent stainless steel.
Size: #6-32.

$22.65
$0.2265

+ -

LOCK NUT, NYLON UNC, ZINC 5/16-18" GR 2, BLACK

LN5618-2

$0.8645

+ -

LOCK NUT NYLON UNC ZINC #8-32 GR 2

LN832

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: #8-32.
Zinc plated.

$20.85
$0.2085

+ -

LOCK NUT NYLON UNF ZINC 7/16"-20 GR 2

LN7620

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 7/16"-20.
Zinc plated.

$18.59
$0.3718

+ -

LOCK NUT NYLON UNC ZINC 7/16"-14 GR 2

LN7614

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 7/16"-14.
Zinc plated.

$21.50
$0.43

+ -

LOCK NUT NYLON UNC STAINLESS 7/16"-14

LN7614SS

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with stainless steel machine screws and bolts.
Reusable.
The nylon collar will begin to deteriorate at temperature from 150 to 350° F.
Made form 18-8 or equivalent stainless steel.
Size: 7/16"-14.

$38.50
$0.77

+ -

LOCK NUT NYLON UNC STAINLESS #8-32

LN832SS

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with stainless steel machine screws and bolts.
Reusable.
The nylon collar will begin to deteriorate at temperature from 150 to 350° F.
Made form 18-8 or equivalent stainless steel.
Size: #8-32.

$27.00
$0.27

+ -

LOCK NUT NYLON UNF ZINC 9/16"-18 GR 2

LN9618

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 9/16"-18.
Zinc plated.

$18.4275
$0.7371

+ -

LOCK NUT NYLON UNC ZINC 9/16"-12 GR 2

LN9612

Hex nut with a nylon-filled collar at its back end.
When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit.
Restricts movement of the screw when it is subjected to vibration.
Designed to be used with like-material machine screws and bolts.
Reusable.
Less expensive than Grade C Stover lock nuts.
The nylon collar will begin to deteriorate at temperature from 150° to 350° F.
Proof load: 90,000 psi. minimum.
Size: 9/16"-12.
Zinc plated.

$15.76
$0.6304

+ -

LOCK WASHER SPLIT USS ZINC 1" GR 5

LW1

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
Designed for use with grade 5 bolts.
Rockwell Hardness: C38-46
Inside Diameter: Min 1.003 Max 1.024
Outside Diameter: 1.656

$45.2075
$1.8083

+ -

LOCK WASHER SPLIT USS ZINC #10 GR 5

LW10

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
Designed for use with grade 5 bolts.
Rockwell Hardness: C38-46
Inside Diameter: Min .193 Max .200
Outside Diameter: 0.334

$7.40
$0.074

+ -

LOCK WASHER SPLIT METRIC ZINC M10

LW10M

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
For use with metric bolts and screws.
Rockwell Hardness: C44-51
Inside Diameter: Min 10.2 Max 10.7
Outside Diameter: 18.1

$30.60
$0.306

+ -

LOCK WASHER SPLIT USS ZINC #12 GR 5

LW12

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
Designed for use with grade 5 bolts.
Rockwell Hardness: C38-46
Inside Diameter: Min .220 Max .227
Outside Diameter: 0.377

$16.80
$0.168

+ -

LOCK WASHER SPLIT STAINLESS #10

LW10SS

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Stainless Steel.
Resists loosening caused by vibration and corrosion.
For use with stainless nuts and screws of a similar stainless alloy.
Rockwell Hardness: C35-43
Inside Diameter: Min .193 Max .200
Outside Diameter: 0.334

$12.00
$0.12

+ -

LOCK WASHER SPLIT METRIC ZINC M12

LW12M

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
For use with metric bolts and screws.
Rockwell Hardness: C44-51
Inside Diameter: Min 12.2 Max 12.7
Outside Diameter: 21.1

$28.08
$0.2808

+ -

LOCK WASHER SPLIT METRIC ZINC M14

LW14M

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Steel, zinc plated.
Resists loosening caused by vibration and corrosion.
For use with metric bolts and screws.
Rockwell Hardness: C44-51
Inside Diameter: Min 14.2 Max 14.7
Outside Diameter: 24.1

$11.60
$0.464

+ -

LOCK WASHER SPLIT USS ZINC 1/4" GR 5

LW14

A coiled, hardened split circular washer with a slightly trapezoidal wire section.
Applies greater bolt tension per unit of applied torque.
Provides a hardened bearing surface and more uniform load distribution.
Resists loosening caused by vibration and corrosion.
Designed for use with grade 5 bolts.
Rockwell Hardness: C38-46
Inside Diameter: Min .252 Max .260
Outside Diameter: 0.487

$22.35
$0.2235

+ -