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 WASHER INT-EXT ZINC 3/16" INTERNAL-EXTERNAL TOOTH

IE36LW

A hardened circular washer with twisted prongs or teeth protruding from both the inside and outside edges of the washer.
Preferred in the following situations: Where a larger bearing surface is desired. For an optimum electrical connection. Where the hole is oversized or out of round. An insert between two adjustable pieces where a longitudinal or rotational adjustment must be maintained.
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .195 Max .204
Outside Diameter: Min .580 Max .610
Thickness: Min .028 Max .034

$21.45
$0.2145

+ -

LOCK WASHER INTERNAL ZINC #10 INTERNAL TOOTHED

ILW10

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .195 Max .204
Outside Diameter: Min .365 Max .381
Thickness: Min .018 Max .024

$4.20
$0.042

+ -

LOCK WASHER INTERNAL ZINC #12 INTERNAL TOOTHED

ILW12

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .221 Max .231
Outside Diameter: Min .394 Max .410
Thickness: Min .020 Max .027

$10.60
$0.106

+ -

LOCK WASHER INTERNAL ZINC 1/4" INTERNAL TOOTHED

ILW14

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .256 Max .267
Outside Diameter: Min .460 Max .478
Thickness: Min .023 Max .028

$9.40
$0.094

+ -

LOCK WASHER INTERNAL ZINC 3/4" INTERNAL TOOTHED

ILW34

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .768 Max .795
Outside Diameter: Min 1.220 Max 1.245
Thickness: Min .047 Max .055

$41.76
$0.4176

+ -

LOCK WASHER INTERNAL ZINC 1/2" INTERNAL TOOTHED

ILW50

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .513 Max .530
Outside Diameter: Min .867 Max .900
Thickness: Min .037 Max .045

$25.56
$0.2556

+ -

LOCK WASHER INTERNAL ZINC 5/8" INTERNAL TOOTHED

ILW58

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .641 Max .663
Outside Diameter: Min 1.045 Max 1.071
Thickness: Min .042 Max .050

$29.16
$0.2916

+ -

LOCK WASHER INTERNAL ZINC 7/16" INTERNAL TOOTHED

ILW76

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .448 Max .464
Outside Diameter: Min .740 Max .789
Thickness: Min .032 Max .040

$22.50
$0.225

+ -

LOCK WASHER INTERNAL ZINC #6 INTERNAL TOOTHED

ILW6

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min .141 Max .150
Outside Diameter: Min .275 Max .295
Thickness: Min .016 Max .022

$4.00
$0.04

+ -

RETAINING/SNAP RING INTERNAL, 1/4"

IRR14

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 1/4".

$7.92
$0.3168

+ -

RETAINING/SNAP RING INTERNAL, 1"

IRR1

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 1".

$12.18
$0.487

+ -

RETAINING/SNAP RING INTERNAL, 11/16"

IRR1116

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 11/16".

$10.07
$0.4026

+ -

LOCK WASHER INTERNAL ZINC #8 INTERNAL TOOTHED

ILW8

A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
Made from spring steel, zinc plated.
Rockwell Hardness: C40-50.
Inside Diameter: Min.168 Max .176
Outside Diameter: Min .325 Max .340
Thickness: Min .018 Max .023

$10.60
$0.106

+ -

RETAINING/SNAP RING INTERNAL, 1/2"

IRR50

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 1/2".

$12.94
$0.5176

+ -

RETAINING/SNAP RING INTERNAL, 3/4"

IRR34

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 3/4".

$18.64
$0.7455

+ -

RETAINING/SNAP RING INTERNAL, 3/8"

IRR38

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 3/8".

$7.35
$0.294

+ -

RETAINING/SNAP RING INTERNAL, 5/16"

IRR56

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 5/16".

$3.90
$0.156

+ -

RETAINING/SNAP RING INTERNAL, 5/8"

IRR58

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 5/8".

$9.54
$0.3817

+ -

RETAINING/SNAP RING INTERNAL, 7/16"

IRR76

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 7/16".

$10.24
$0.4096

+ -

RETAINING/SNAP RING INTERNAL, 9/16"

IRR96

A ring-shaped stamping with one opening on the circumference.
The two ends at the opening are called lugs and flare out slightly allowing for easier installation onto shaft.
Installed axially on to a shaft.
Allows for complete contact and tightness in a groove.
Can be safely used in a temperature range of -100 to 500°s F.
Carbon steel material, heat treated.
For shaft diameter of 9/16".

$8.99
$0.3597

+ -

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

+ -