Lock Pins | McMaster-Carr

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Fastener Head Type

Retaining Ring Groove

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Cadmium Yellow-Chromate Plated

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

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Ball Material

400 Series Stainless Steel

Nose Material

7,271 Products

Fastening and Joining

Quick-Release Pins

Fasten or remove components on equipment with a spring-loaded retaining ball

2,247 products

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

35 products

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

23 products

Clevis Pins

Secure parts in place and lock with a cotter pin or retaining ring

2,052 products

Cotter Pins

Secure the ends of clevis pins and shafts to keep components in place

982 products

Linch Pins

Slide into holes on clevis pins and shafts and snap down the locking ring so parts won’t fall off

20 products

Made-to-Order Pins

Create custom pins for keeping components in place—all with material certificates for traceability

162 products

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

1,403 products

Gravity Pins

Slip through holes in telescoping tubing and wrap around to secure

1 product

Spring Button Clips

Join pieces of telescoping tubing using spring force

40 products

Split Rings

Secure clevis pins, connect components, or add a pull handle; also known as key rings

67 products

Building and Machinery Hardware

Slide-Bolt Latches

Slide the bolt to secure everything from swinging gates to overhead garage doors

137 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

5 products

Material Handling

Hitch Pins

Secure hitch inserts to hitch receivers for towing

12 products

Hitch Balls

Mount to hitch inserts and use with hitch receivers and couplers to tow trailers

9 products

Hitch Inserts

Fit into hitch receivers and secure with a hitch pin to create a connection for towing

32 products

Hitch Receivers

Use with hitch inserts and pins to create a complete hitch for towing

2 products

Hitch Kits

Everything you need to attach a hitch to your vehicle’s receiver

2 products

Forklift Hitch Receivers

Secure to forklift forks and slide in a hitch to adapt a forklift for towing

1 product

Containers, Storage, and Furniture

Pallet Rack Locking Pins

Prevent forklifts from dislodging pallet rack beams when loading and unloading pallets

2 products

Fabricating and Machining

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

24 products

Power Transmission

Roller Chain Spring Clips

Replace the clips that secure ANSI roller chain connecting links

7 products

Inverted-Tooth Chain Pins

Replace the pins in your inverted-tooth chain or link two chains together

6 products