Slotted Nuts | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Thread Pitch Thread Pitch

	Nut Type Nut Type

	Locking Type Locking Type

Cotter Pin

Nylon Insert

	Material Material

Steel

Stainless Steel

	Height Height

	Width Width

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Grade 5	Class 8

	Thread Fit Thread Fit

Class 2B

Class 6H

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	For Cotter Pin Diameter For Cotter Pin Diameter

	Drive Style Drive Style


External Hex	Slotted

	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

	Minimum Slot Depth Minimum Slot Depth

	Minimum Slot Width Minimum Slot Width

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

DFARS Specialty Metals
COTS-Exempt

	OD OD

	Specifications Met Specifications Met

DIN

ISO

ANSI/ABMA

	Diameter Diameter

	Face Style Face Style

414 Products

Nuts

Medium-Strength Steel Locknuts
for use with Cotter Pins—Grade 5

Also known as castle nuts, secure these nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance.

Metric Medium-Strength Steel Locknuts
for use with Cotter Pins—Class 8

Secure these metric nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance. Often referred to as castle nuts.

Low-Strength Steel Locknuts for use with Cotter Pins

About half the strength of medium-strength steel locknuts, these are for light duty fastening applications, such as securing access panels.

Stainless Steel Locknuts for use with Cotter Pins

Stainless steel locknuts have excellent corrosion resistance in most environments.

Metric Slotted Round Nuts for Tight Spaces

With a slim, round profile and a slotted drive, these metric nuts work in tight spots where there's no room for a wrench to turn. Instead, tighten them from the center of the nut with a slotted screwdriver.

Steel Slip-On Twist-Close Nuts

Attach these slip-on nuts at any point on a threaded rod for quick installation.

Metric Steel Slip-On Twist-Close Nuts

Attach these metric slip-on nuts at any point on a threaded rod for quick installation.

Stainless Steel Slip-On Twist-Close Nuts

Stainless steel nuts have excellent corrosion resistance in most environments.

Bearing Retaining Nuts

Bearing Retaining Locknuts

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place.

Bearing Retaining Nuts

Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle.

Nuts

Medium-Strength Steel Locknutsfor use with Cotter Pins—Grade 5

Metric Medium-Strength Steel Locknutsfor use with Cotter Pins—Class 8

Low-Strength Steel Locknuts for use with Cotter Pins

Stainless Steel Locknuts for use with Cotter Pins

Metric Slotted Round Nuts for Tight Spaces

Steel Slip-On Twist-Close Nuts

Metric Steel Slip-On Twist-Close Nuts

Stainless Steel Slip-On Twist-Close Nuts

Bearing Retaining Nuts

Bearing Retaining Locknuts

Bearing Retaining Nuts

Medium-Strength Steel Locknuts
for use with Cotter Pins—Grade 5

Metric Medium-Strength Steel Locknuts
for use with Cotter Pins—Class 8