1/4"-20 Dowel Pins | McMaster-Carr

Clear All

	System of Measurement System of Measurement

Inch

	Diameter Diameter

	Length Length

	Thread Size Thread Size	Show

1/4"-20

	Thread Size Thread Size	Hide

	Material Material

	Head Type Head Type


Plain	Flat

Tapped	Threaded

Headless	Retaining Ring Groove

Through Hole

	Shaft Type Shaft Type


Plain	Tapered

D-Profile	Spiral

	Thread Length Thread Length

	Shaft Length Shaft Length

	End Shape End Shape


Chamfered	Rounded

	Shaft Diameter Shaft Diameter

1/4"

	End Type End Type


Plain	Threaded

Tapped	Set Screw Flat

	Pin Type Pin Type

	Dowel
	Taper
	Made to Order

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Minimum Hardness Minimum Hardness

Rockwell C47

Rockwell C60

Not Rated

	Thread Spacing Thread Spacing

Coarse

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Tolerance Rating Tolerance Rating

Standard

	Breaking Strength Breaking Strength

	Specifications Met Specifications Met

ASME

	Shoulder Length Shoulder Length

	Tensile Strength Tensile Strength

178 Products

Fasteners

Pull-Out Dowel Pins

To remove these pins, thread a screw or tool into the tapped hole, then pull them out.

Flat-Vent Pull-Out Dowel Pins

The flat side of these pins relieves trapped air, making them easier to insert in and remove from blind holes. To remove, thread a screw or tool into the tapped hole, then pull the pin out.

Spiral-Vent Pull-Out Dowel Pins

A spiral groove cut into these pins relieves trapped air but stays in 360° contact with the hole for a secure fit that's easy to insert in and remove from blind holes. To remove, thread a screw or tool into the tapped hole, then pull the pin out.

Tapped Taper Pins

These internally threaded pins sit flush in an assembly. For easy removal from a blind hole, thread a screw into the pin and pull out.

Made-to-Order Pins

Choose a material, head type, end type, and size to create a custom pin.

Flat-Head Made-to-Order Pins

Create a custom headed pin with your choice of material, dimensions, and end type.

Partially Threaded Studs

Screw these studs into a tapped hole and use them as a pivot point, hinge, shaft, or locator pin.

Headless Alloy Steel Precision Shoulder Screws

Without a head to get in the way, these screws fit in tight spaces where standard shoulder screws cannot. Either thread them in a countersunk hole for a flush mount, or install them with the shoulder sticking out to use them as pins or dowels for aligning and locating components.

Clamping and Workholding

Threaded Locating Pins

Screw the shank into a threaded hole for quick installation and removal.

Threaded Locating and Support Buttons

Use these buttons to support and position workpieces and fixtures from the bottom or side. Their hex shape lets you screw them into a threaded hole with a wrench or socket.

Swiveling Locating and Support Buttons

The swiveling tip supports uneven and angled surfaces.

Create-Your-Own Spring-Loaded Guide Pins

Thread in a screw, handle, or other part to create the right size and shape guide pin for your application.

Inspection and Measuring Fixturing

Use these components in coordinate measuring machine (CMM) applications to raise a workpiece and reliably position it on a fixture plate with ¼"-20 holes.