Nonmetallic Nuts | McMaster-Carr

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	Material Material

Ceramic

Fiberglass

Plastic

	Insulation Material Insulation Material

Plastic

Polypropylene Plastic/Rubber
Blend

Porcelain

Thermoplastic Rubber Blend

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Nut Type Nut Type


Cap	Clip On

Coupling	Externally Threaded

Flange	Hex

Locknut	Round

Snap In	Square

Thumb

	Color Color

	Black		Off-White
	Gray		White
	Brown		Clear
	Red		Blue
	Beige		Yellow
	Orange		Green
	Dark Blue		Light Blue

	Height Height

	Width Width

	Hex Nut Profile Hex Nut Profile


Standard	Thin

	Thread Direction Thread Direction

Right Hand

Left Hand

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Thumb Nut Profile Thumb Nut Profile

	Standard

	Head Diameter Head Diameter

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Thread Fit Thread Fit

	Thumb Nut Head Shape Thumb Nut Head Shape


Wing	Round

	Type Type


Locknut	Nut

Splice

	Thread Pitch Thread Pitch

	Drive Style Drive Style


External Hex	External Square	Slotted

	Threading Threading

	Fully Threaded
	Partially Threaded

	Collar Height Collar Height

1,191 Products

Fasteners

Hex Nuts

Use for general purpose fastening applications.

Flange Nuts

The flange distributes pressure where the nut meets the material surface, eliminating the need for a separate washer.

Cap Nuts

Cover and protect threads while providing a finished appearance.

Thumb Nuts

Thumb nuts provide a secure grip for tightening and loosening by hand.

Coupling Nuts

Also known as extension nuts, use these to connect and extend threaded rods. They’re about three times taller than standard hex nuts.

Square Nuts

Large flat sides make these nuts easy to grip with a wrench and keep them from rotating in channels and square holes.

Snap-In Nuts

Snap these nuts into square holes in thin materials.

Screws and Bolts

Threaded Standoffs

Snap-In Supports with
Male Threaded Connection

Thread the male connection into a tapped hole and snap the other end into a panel for a secure hold that can be released for repairs and upgrades.

Push-On Retaining Caps

Use these caps to hold components in place and protect shaft ends.

Electrical

Locknuts for Plastic Conduit Fittings

Secure threaded plastic conduit fittings to a knockout in an outlet box or enclosure.

Wire Splicing Connectors

Attach wires side-by-side.

Twist-On No-Crimp Butt Splices

End caps twist to lock wires into place, making these splices a good choice for high-vibration applications.

Other Nuts

Precision Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Compared to ball screws and nuts, they're quieter and better for shock loads.

Plastic Pipe Fittings for Oil

Made of corrosion-resistant plastic, these fittings won’t deteriorate when used in oil applications. They have high strength and impact resistance.

T-Slotted Framing Fasteners

Screws and nuts secure brackets and accessories to T-slotted rails.

Slip-Joint Fittings

Use these fittings to connect tailpieces, P-traps, S-traps, and extension tubing to sink drains.

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