Precision Dowel Pins | McMaster-Carr

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9,183 Products

Fastening and Joining

Dowel Pins

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

Dowel Pin Stock

Dowel Pin Stock

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

Spring Pins

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

Taper Pins

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

Made-to-Order Pins

Made-to-Order Pins

Choose a material, size, and end type to create custom pins for keeping components in place

Captive Pins

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

Weld Pins

Weld in place for greater rigidity and strength than other pins

Shear Pins

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

Shoulder Screws

Shoulder Screws

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

Single-End Studs

Single-End Studs

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

Fabricating and Machining

Core Pins

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

Ejector Pins

Push finished parts out of molds

Ejector Blades

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

Ejector Sleeves

Ejector Sleeves

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

Locating Pins

Install in fixturing plates or tables to position and secure workpieces

Locating Pin Retractors

Locating Pin Retractors

Extend and retract locating pins to protect them when fixtures are moving

Locating and Support Buttons

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

Spring Locating Pins

Spring Locating Pins

Apply side force to workpieces to clamp them in place

Spring Locating Pin Installation Tools

Spring Locating Pin Installation Tools

Hold spring locating pins in place for installation

Spring Stops

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

Slotted Bushings

Slotted Bushings

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

Index Plungers

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

Punch Pins

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

Clamps

Hold workpieces securely in place

Measuring and Inspecting

Coordinate Measuring Machine Plates and Fixtures

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

Alignment Pins

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

Pipe Flange Aligners

Pipe Flange Aligners

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)