Pins | McMaster-Carr

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System of Measurement

Diameter

Length

Material

Usable Length

Fastener Head Type

Retaining Ring Groove

End Shape

End Type

Multiple Through Holes

Plain

Retaining Ring Groove

Pin Type

Shaft Type

Round with Support Rail

Performance

Electrically Insulating

Thread Size

Minimum Hardness

Finish

Cadmium Yellow-Chromate Plated

Ceramic Coated

Chromate Conversion Coated

Chrome Plated

Copper Plated

Corrosion-Resistant Coated

Tolerance Rating

Head Diameter

Specifications Met

Cal/OSHA Compliant Title 8 Section 1646

OSHA Compliant 29 CFR 1926.451

SAE Standard

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Handle Material

Export Control Classification Number (ECCN)

Hardness

Steel Grade

1008-1010 Low-Carbon Steel

1008-1018 Low-Carbon Steel

1018 Low-Carbon Steel

Double Shear Breaking Strength

Shaft Diameter

22,031 Products

Fastening and Joining

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

3,502 products

Clevis Pins

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

2,039 products

Quick-Release Pins

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

2,245 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

Spring Pins

Squeeze and insert into tight holes to hold parts in place with tension

1,782 products

Cotter Pins

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

982 products

Captive Pins

Press into holes in thin materials like panels and circuit boards to permanently join or align them

84 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

Taper Pins

Fit snugly into tapered holes to secure, position, and align components

667 products

Made-to-Order Pins

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

162 products

Dowel Pin Stock

Cut to the length you need for positioning and holding parts in place

53 products

Weld Pins

Weld in place for greater rigidity and strength than other pins

28 products

Shear Pins

Use with shear hubs to break at a specific torque and safeguard machinery from overloads

60 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

184 products

Spring Plungers

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

1,403 products

Spring Plunger Catches

Act as a stop for positioning ball-nose and long-nose spring plungers

16 products

Spring Plunger Mounts

Secure ball-nose and long-nose spring plungers to fixture surfaces

14 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

82 products

T-Bolts

Turn by hand for easy fastening, use as a handle, or attach as a point for straps and clamps

21 products

Studs

Press, weld, or screw in place to add a threaded fastening point

673 products

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

29 products

Thumb Screws

Tighten and loosen by hand without the need for tools

11 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

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

327 products

Screw Nails

Drive like nails but hold like screws in drilled holes in wood, plastic, drywall, and masonry

76 products

Nails

Drive into wood, plastic, drywall, and masonry

18 products

Split Rings

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

67 products

Machine Keys

Transmit torque from rotating shafts to gears, sprockets, and other machine parts

1,014 products

Machine Key Stock

Cut a custom length to transfer torque from shafts to components such as gears and sprockets

827 products

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

157 products

Push Pins

Quickly fasten materials to soft surfaces like bulletin boards and drywall

3 products

Safety Pins

Fasten tags, labels, and other objects to fabric without pricking yourself

3 products

Tacks

Secure upholstery to a frame

8 products

Document Clips

Hold loose papers together without creating a permanent mark

2 products

Wood Joiners

Connect and repair wood pieces and joints

3 products

Spring Plunger Drivers

Install spring plungers from the nose end without depressing the nose

10 products

Pin Extractors

Remove stuck pins with a slide design that gives you extra leverage in tight spaces

5 products

Pin Removal Punches

Strike with a hammer to loosen and remove pins and rivets

149 products

Anchor Installation Tools

Drive with a hammer to expand and secure anchors in place

20 products

Pin Insertion Tools

Strike with a hammer to install pins

12 products

Rivet Tools

Install and remove blind, solid, hollow, and other types of rivets

5 products

Stud Welders

Join studs and pins to metal, leaving no marks on the back of the material

40 products

Fabricating and Machining

Core Pins

Add to molds and pour in plastic to form holes in finished parts

1,274 products

Ejector Pins

Push finished parts out of molds

361 products

Alignment Locks

Precisely align your mold halves

10 products

Ejector Sleeves

Use with mold pins to form holes, bosses, and other features in parts

39 products

Ejector Blades

Flat end pushes thin-walled parts out of molds better than ejector pins

106 products

Locating Pins

Install in fixturing plates or tables to position and secure workpieces

209 products

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

168 products

Spring Locating Pins

Apply side force to workpieces to clamp them in place

53 products

Spring Locating Pin Installation Tools

Hold spring locating pins in place for installation

6 products

Spring Stops

Push back against workpieces to hold them in place against stops and rails

34 products

Index Plungers

Align parts that have mating bushings for more precision than standard spring plungers

6 products

Pin Removal Blocks

Remove a range of pin sizes from workpieces by tapping them into holes with a punch and hammer

1 product

Fixture Clamps

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

34 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

10 products

Work Supports

Reduce vibration and deformation by adjusting to secure your workpiece

3 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Punch Pins

Use with press dies to punch 1/8" and larger holes; modify to fit your application

30 products

Clothespins

Hold light items, secure covers, and seal bags

4 products

Multitools

A variety of tools and blades all in one

2 products

Grinding Bits

Pair with grinders for light material removal and precision grinding

130 products

Drill Chuck Replacement Parts

Replace collars, shells, ball bearings, and other parts on drill chucks

54 products

Measuring and Inspecting

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

1,026 products

Plug Gauge Handles

Add both a go gauge and a no-go gauge to create a custom tool for checking hole diameters

27 products

Plug Gauge Drivers

Test thread tolerance in seconds to save time during high-volume work

1 product

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

37 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

126 products

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Alignment Pins

Line up holes in sheet metal, I-beams, and angle irons for bolting, riveting, and welding

148 products

Pipe Flange Aligners

Line up flange holes so they bolt securely and connections won’t leak

21 products

Spring Test Probes

Use in spring test probe sockets to test for continuity and damaged components in circuit boards

79 products

Spring Test Probe Sockets

Pair with spring test probes to test for continuity and damaged components in circuit boards

23 products

Center Punches

Mark center holes in metal and other material

4 products

Material Handling

Hitch Pins

Secure hitch inserts to hitch receivers for towing

12 products

Hitch Inserts

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

32 products

Hitch-Ball Couplers

Bolt or weld to trailers and connect to hitch balls on vehicles for towing

10 products

Hitch Receivers

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

2 products

Hitch Balls

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

9 products

Hitch Kits

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

2 products

Tow Hooks

Bolt to vehicles and connect to tow eyes on trailers for towing

9 products

Tow Eyes

Mount to trailers and connect to tow hooks or drawbar couplers on vehicles for towing

14 products

Kingpins

Bolt or weld to a semi-trailer to connect it to your tractor

6 products

Drawbar Couplers

Use with drawbar rings to connect trailers to vehicles; also known as pintle hitches

17 products

Forklift Hitch Receivers

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

1 product

Conveyor Belt Lacing Pins

Insert and lock in place to connect belt lacing ends

79 products

Conveyor Belt Lacing Clips

Hold belt lacing in place during installation

4 products

Conveyor Belt Lacing

Join conveyor belt ends with a strong, reliable connection; easier to install than endless belts

169 products

Conveyor Belt Lacers

Install hook- or staple-style conveyor belt lacing

12 products

Hoist Rings

Pivot to resist stress that would bend or break an eyebolt when lifting at an angle

16 products

Scaffold Locking Pins

Fasten base plates, guardrail posts, and other components to scaffold frames

4 products

Electrical

Electrical Connector Contacts

Crimp wire into pins and sleeves to create custom Molex or Amphenol connectors

24 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

111 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

47 products

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

10 products

Circuit Board Headers

Make quick connections to development boards and other circuit boards when prototyping

20 products

Terminals, Ferrules, and Lugs

Attach to the end of wire to connect circuits in control panels, motors, and machinery

75 products

Electrical Connector Seals

Add to the front or back of connectors to block out dust, debris, and weather

5 products

Electrical Cords

Connect equipment and devices to a power supply

4 products

Battery Clip Retaining Pins

Hold battery retaining clips closed to stop batteries from coming loose

2 products

Building and Machinery Hardware

Door Holders

Mount to doors, walls, or floors to keep doors open

1 product

Door Closers

Automatically and smoothly pull doors, storm doors, and gates closed

1 product

Facility and Grounds Maintenance

Rolling Pins

Evenly roll out dough-like materials, such as clay

1 product

Power Transmission

Hydraulic Cylinder Mounts

Restrain cylinders and secure loads to the end of the rod

33 products

Linear Bearings

Minimize friction as parts move along a shaft

181 products

Sleeve Splines and Bearings

Transmit rotary power or move loads along the length of splines

3 products

Containers, Storage, and Furniture

File Holders

Keep documents organized in wall-mount, desktop, and revolving holders

1 product

Pallet Rack Locking Pins

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

2 products

Communication

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

5 products

Heating, Ventilation, and Air Conditioning

Insulation Hanger Studs

Press insulation sheets onto the spike to secure them to walls and other flat surfaces

17 products