Black Oxide Jam Nuts | McMaster-Carr

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	Hex Nut Profile Hex Nut Profile


Thin	Extra-Wide Thin

	Material Material

Stainless Steel

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Black Phosphate

Black Ultra-Corrosion-
Resistant Coated

Zinc Yellow-Chromate Plated

Zinc-Aluminum Coated

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	Width Width

	Thread Direction Thread Direction

	Right Hand

	Thumb Nut Profile Thumb Nut Profile


Standard	Flanged

Low

	Thread Spacing Thread Spacing

	Thread Fit Thread Fit

	Head Diameter Head Diameter

	Thread Type Thread Type

	Thread Pitch Thread Pitch

	Drive Style Drive Style

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	Thumb Nut Head Shape Thumb Nut Head Shape

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	Collar Diameter Collar Diameter

	Collar Height Collar Height

	Specifications Met Specifications Met

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Mil. Spec.

Fed. Spec.

	Hole Diameter Hole Diameter

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118 Products

About Nuts, Materials, and Finishes

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Hex Nuts

Low-Strength Steel Thin Hex Nuts

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Made from Grade 2 steel, these nuts should be used for light duty fastening applications, such as securing access panels.

18-8 Stainless Steel Thin Hex Nuts

18-8 Stainless Steel Thin Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless
Steel Thin Hex Nuts

Metric 18-8 Stainless Steel Thin Hex Nuts

Useful in low-clearance applications, these metric nuts are roughly half the height of standard hex nuts, but aren’t as strong. All are 18-8 stainless steel, which is nearly as strong as steel but won’t rust in outdoor, washdown, and other corrosive environments.

Metric Fine-Thread 18-8
Stainless Steel Thin Hex Nuts

Metric Fine-Thread 18-8 Stainless Steel Thin Hex Nuts

Made with fine-pitch threads, vibration is less likely to loosen these metric nuts than those with coarse-pitch threads since the threads sit closer together. Also called jam nuts, they are roughly half the height of standard hex nuts, so they’re good for applications with low clearance.

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.

Super-Corrosion-Resistant 316
Stainless Steel Thin Hex Nuts

Super-Corrosion-Resistant 316 Stainless Steel Thin Hex Nuts

Low-Strength Steel
Extra-Wide Thin Hex Nuts

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

Knurled-Head Thumb Nuts

Metric 18-8 Stainless Steel
Knurled-Head Thumb Nuts

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Made from 18-8 stainless steel, these metric thumb nuts have good chemical resistance and may be mildly magnetic.

Low-Profile Thumb Nuts

Use these thumb nuts in low-clearance applications or jam one against another nut to hold it in place.

Steel High-Torque
Low-Profile Thumb Nuts

These nuts have a black-oxide finish for mild corrosion resistance in dry environments.

18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

18-8 Stainless Steel Flanged Knurled-Head Thumb Nuts

These thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

Metric 18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

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These metric thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

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