Key Stock Bars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Width Width

	Length Length

	Material Material

	Finish Finish

Zinc Plated

Gold Dichromate Plated

	Height Height

	Tolerance Rating Tolerance Rating

Undersized

Oversized

Standard

	Key Type Key Type


Straight	Step

	Minimum Hardness Minimum Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Specifications Met Specifications Met

DIN

ANSI

Mil. Spec.

	Step Key Type Step Key Type

For Shafts

For Gears

	Container Type Container Type

Cardboard Box

Cardboard Tube

	Number of Pieces Number of Pieces

	Color Color

	Off-White
	Beige
	White

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675 Products

Fasteners

Machine Key Stock

Cut this stock to length to create the machine key you need. Straight keys, with a square or rectangular cross section, are the most common type of key. Install in a keyway to transmit torque from shafts to gears and other components.

Step Machine Key Stock

When a keyway is damaged, cut a new, wider one. This key stock is stepped to match repaired keyways in shafts or gears. Cut it to length to create the machine key you need.

Standard Key Stock Assortments

These assortments include various sizes of key stock—choose a piece and cut it to your desired length.

Oversized Key Stock Assortments

Make a key that is the exact length you need. Slightly larger than the size listed, these oversized keys offer a tight fit in worn keyways.

Step Key Assortments

Also known as offset key stock, use step keys to repair keyways in gears and shafts.