Key Stock Bars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Width Width

	Height Height

	Length Length

	Material Material

	Tolerance Rating Tolerance Rating

Undersized

Oversized

Standard

	Key Type Key Type


Straight	Step

Woodruff

	Minimum Hardness Minimum Hardness

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

REACH Compliant

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Finish Finish

Zinc Plated

Gold Dichromate Plated

	Specifications Met Specifications Met

DIN

ANSI

Mil. Spec.

	Number of Pieces Number of Pieces

300

401

	Container Type Container Type

Cardboard Box

Plastic Box

Cardboard Tube

	Step Key Type Step Key Type

For Shafts

For Gears

	Container Features Container Features

Compartmented

Lid Chart

	Color Color

	Off-White
	Beige
	White

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1,048 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.

Machine Keys

Straight keys, with a square or rectangular cross section, are the most common type of key. Install them in keyways to transmit torque from shafts to gears and other components.