Mil. Spec. Hex Nuts | McMaster-Carr

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ANSI/ASME 18.2.2

EHEDG Certified

	System of Measurement System of Measurement

	Thread Size Thread Size

	Nut Type Nut Type


Flange	Hex

Locknut

	Material Material

Stainless Steel

	Finish Finish

Cadmium Yellow-Chromate
Plated

	Hex Nut Profile Hex Nut Profile


Standard	Thin

	Width Width

	Height Height

	Thread Direction Thread Direction

	Right Hand

	Locking Type Locking Type


Nylon Insert	Distorted Thread

Flex-Top

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Thread Type Thread Type

	Thread Fit Thread Fit

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Grade 2	Grade 5

Grade 8

	Thread Spacing Thread Spacing

	Drive Style Drive Style

	External Hex

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

	Flange Diameter Flange Diameter

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

REACH Compliant

	Insert Maximum Temperature Insert Maximum Temperature

	Distorted Thread Type Distorted Thread Type

	Center Lock

	Flange Thickness Flange Thickness

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168 Products

About Nuts, Materials, and Finishes

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Hex Nuts

Mil. Spec. Medium-Strength Steel Hex Nuts

Mil. Spec. Medium-Strength Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Mil. Spec. High-Strength Steel Hex Nuts

Mil. Spec. High-Strength Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Low-Strength Steel Hex Nuts

Low-Strength Steel Hex Nuts

About half the strength of medium-strength steel nuts, these nuts are for light duty fastening applications.

Mil. Spec. Low-Strength Steel Hex Nuts

Mil. Spec. Low-Strength Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Mil. Spec. 18-8 Stainless Steel Hex Nuts

Mil. Spec. 18-8 Stainless Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Mil. Spec. 18-8 Stainless Steel Thin Hex Nuts

Mil. Spec. 18-8 Stainless Steel Thin Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction.

Locknuts

Mil. Spec. Low-Strength Steel Nylon-Insert Locknuts

Mil. Spec. Low-Strength Steel Nylon-Insert Locknuts

Choose these locknuts for their adherence to strict military standards for material and construction. They’re low-strength steel, so they should be used for fastening panels and other light duty fastening applications.

Mil. Spec. 18-8 Stainless Steel Nylon-Insert Locknuts

Mil. Spec. 18-8 Stainless Steel Nylon-Insert Locknuts

Choose these locknuts for their adherence to strict military standards for material and construction.

Mil. Spec. Low-Strength Steel
Thin Nylon-Insert Locknuts

Mil. Spec. Low-Strength Steel Thin Nylon-Insert Locknuts

Choose these locknuts for their adherence to strict military standards for material and construction.

Mil. Spec. 18-8 Stainless Steel
Thin Nylon-Insert Locknuts

Mil. Spec. 18-8 Stainless Steel Thin Nylon-Insert Locknuts

Choose these locknuts for their adherence to strict military standards for material and construction.

Mil. Spec. Steel Flex-Top Locknuts for Heavy Vibration

Mil. Spec. Steel Flex-Top Locknuts for Heavy Vibration

Choose these locknuts for their adherence to strict military standards for material and construction.

Mil. Spec. Stainless Steel Flex-Top
Locknuts for Heavy Vibration

Mil. Spec. Stainless Steel Flex-Top Locknuts for Heavy Vibration

Choose these locknuts for their adherence to strict military standards for material and construction.

Distorted-Thread Flange Locknuts

Mil. Spec. Low-Strength Steel
Distorted-Thread Flange Locknuts

Mil. Spec. Low-Strength Steel Distorted-Thread Flange Locknuts

Choose these flange locknuts for their adherence to strict military standards for material and construction.

Stainless Steel Distorted-Thread Flange Locknuts

Stainless Steel Distorted-Thread Flange Locknuts

These flange locknuts have excellent resistance to chemicals and salt water. They have an irregularly shaped thread that grips the bolt for a stronger hold than nylon-insert flange locknuts.

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