Metric Pins | McMaster-Carr

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System of Measurement

Diameter

Length

Material

End Shape

Pin Type

Shaft Type

Round with Support Rail

Fastener Head Type

Retaining Ring Groove

End Type

Retaining Ring Groove

Usable Length

Thread Size

Specifications Met

Performance

Tolerance Rating

Steel Grade

Hardness

Shaft Diameter

Head Diameter

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Passivation

Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Double Shear Breaking Strength

4,882 Products

Fastening and Joining

Dowel Pins

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

1,154 products

Clevis Pins

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

137 products

Spring Pins

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

541 products

Quick-Release Pins

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

283 products

Cotter Pins

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

192 products

Captive Pins

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

44 products

Taper Pins

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

232 products

Quick-Release Pin Receptacles

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

11 products

Quick-Release Pin Retaining Caps

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

5 products

Single-End Studs

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

47 products

Spring Plungers

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

263 products

Shoulder Screws

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

19 products

Studs

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

209 products

Hex Head Screws

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

22 products

Machine Keys

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

595 products

Machine Key Stock

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

271 products

Rivets

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

10 products

Anchors

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

4 products

Spring Plunger Drivers

Install spring plungers from the nose end without depressing the nose

7 products

Fabricating and Machining

Core Pins

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

112 products

Ejector Pins

Push finished parts out of molds

136 products

Locating Pins

Install in fixturing plates or tables to position and secure workpieces

34 products

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

29 products

Fixture Clamps

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

29 products

Spring Locating Pins

Apply side force to workpieces to clamp them in place

30 products

Die Bushings

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

3 products

Slotted Bushings

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

7 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

1 product

Measuring and Inspecting

Plug Gauges

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

301 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

52 products

Alignment Pins

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

15 products

Power Transmission

Linear Bearings

Minimize friction as parts move along a shaft

76 products

Material Handling

Hoist Rings

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

10 products

Electrical Power, Networking, and Controlling

Circuit Board Headers

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

2 products

Power Receptacles

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

7 products