Zinc Plated Jam Nuts | McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Hex Nut Profile Hex Nut Profile


Thin	Standard

Extra-Wide Thin

	Nut Type Nut Type


Hex	Locknut

Panel	Thumb

Flange	Square

	Thread Direction Thread Direction


Right Hand	Left Hand

	Height Height

	Width Width

	Material Material

Steel

Brass

	Finish Finish	Show

Zinc Plated

	Finish Finish	Hide

Cadmium Yellow-
Chromate Plated

Chrome Plated

Corrosion-Resistant-
Coated

Zinc Yellow-Chromate
Plated

Zinc-Flake Coated

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Thread Type Thread Type

	Pipe Size Pipe Size

1/8

	Thread Fit Thread Fit

Class 2B

Class 6H

Class 2G

	Locking Type Locking Type

	Nylon Insert

	Specifications Met Specifications Met

	Drive Style Drive Style


External Hex	External Square

	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

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

REACH Compliant

	Panel Nut Shape Panel Nut Shape


Hex	Round

	Insert Maximum Temperature Insert Maximum Temperature

282 Products

About Nuts, Materials, and Finishes

Medium-Strength Steel Thin Hex Nuts

Made from Grade 5 steel, these inch-sized nuts are suitable for most fastening applications.

Left-Hand Threaded
Medium-Strength Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 5 steel, so you can used these inch-sized nuts for most fastening applications.

High-Strength Steel Thin Hex Nuts—Grade 8

These nuts are about 25% stronger than medium-strength steel thin hex nuts. Available in inch thread sizes.

Low-Strength Steel Thin Hex Nuts

These nuts should be used for light duty fastening applications, such as securing access panels.

Extreme-Strength Steel Extra-Wide
Thin Hex Nuts—Grade 2H

These nuts are often used in conjunction with an extra-wide hex nut to fasten Grade 9 bolts in heavy machinery, such as earth-moving equipment.

Metric Low-Profile Low-Strength
Steel Nylon-Insert Locknuts

With a shorter hex height than standard DIN 985 locknuts, these nylon-insert locknuts meet international ISO 10511 dimensional standards and are easy to install in tight spaces.

Low-Strength Steel Thin Nylon-Insert Locknuts

These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low clearance applications or jam one against a hex nut to hold it in place.

High-Strength Steel Thin Nylon-Insert Locknuts

These Grade 8 locknuts are about 25% stronger than medium-strength steel thin locknuts.

Medium-Strength Steel Thin Nylon-Insert Locknuts

Grade 5 locknuts are suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut.

Low-Strength Steel Extra-Wide
Thin Nylon-Insert Locknuts

Use these locknuts for light duty fastening applications, such as securing access panels.

Steel Hex Panel Nuts

These steel panel nuts are zinc plated for corrosion resistance.

Knurled Panel Nuts

These panel nuts are knurled to provide a secure grip for tightening and loosening by hand.

Brass Flanged Knurled-Head Thumb Nuts

These thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes pressure over a large area to reduce stress on your part.

Metric Brass Flanged Knurled-Head Thumb Nuts

These metric thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes pressure over a large area to reduce stress on your part.

Metric Low-Strength Steel Thin Square Nuts

About half the strength and two-thirds the height of medium-strength steel square nuts, use these metric nuts in light duty, low-clearance applications.

Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects.

About Nuts, Materials, and Finishes

Nuts

Medium-Strength Steel Thin Hex Nuts

Left-Hand ThreadedMedium-Strength Steel Thin Hex Nuts

High-Strength Steel Thin Hex Nuts—Grade 8

Low-Strength Steel Thin Hex Nuts

Extreme-Strength Steel Extra-WideThin Hex Nuts—Grade 2H

Metric Low-Profile Low-StrengthSteel Nylon-Insert Locknuts

Low-Strength Steel Thin Nylon-Insert Locknuts

High-Strength Steel Thin Nylon-Insert Locknuts

Medium-Strength Steel Thin Nylon-Insert Locknuts

Low-Strength Steel Extra-WideThin Nylon-Insert Locknuts

Steel Hex Panel Nuts

Knurled Panel Nuts

Brass Flanged Knurled-Head Thumb Nuts

Metric Brass Flanged Knurled-Head Thumb Nuts

Metric Low-Strength Steel Thin Square Nuts

Acme Lead Screws and Nuts

Acme Lead Screws and Nuts

Left-Hand Threaded
Medium-Strength Steel Thin Hex Nuts

Extreme-Strength Steel Extra-Wide
Thin Hex Nuts—Grade 2H

Metric Low-Profile Low-Strength
Steel Nylon-Insert Locknuts

Low-Strength Steel Extra-Wide
Thin Nylon-Insert Locknuts