Bolt Retainers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For OD For OD

	Material Material

	Finish Finish

Black

Black Phosphate

Black Ultra-Corrosion-
Resistant Coated

Zinc Yellow-Chromate Plated

Zinc-Chromate Plated

	Retaining Ring Style Retaining Ring Style


Push On	Side Mount

Spiral

	Nut Type Nut Type


Push	Clip On

Snap In	Square

Hex	Rivet Mount

Weld

	For Screw Size For Screw Size

	Retaining Ring Type Retaining Ring Type

	External
	Internal

	Thread Size Thread Size

2-56
4-40
6-32
8-32
10-24
10-32
12-24
1/4"-20
1/4"-28
5/16"-18
5/16"-24
3/8"-16
3/8"-24
1/2"-13
M5
M6
M8

	Ring OD Ring OD

	For Groove Diameter For Groove Diameter

	Push Nut Shape Push Nut Shape


Round	Rectangular

	Ring Thickness Ring Thickness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Height Height

	OD OD

	For Groove Width For Groove Width

	Magnetic Properties Magnetic Properties

Magnetic

May Be Mildly Magnetic

	Minimum Hardness Minimum Hardness

	For Use With For Use With

Machine Screws

Tapping Screws

	For ID For ID

	Minimum Installation Depth Minimum Installation Depth

	For Maximum Panel Thickness For Maximum Panel Thickness

View catalog pages (18)

Forward

How can we improve?

566 Products

Nuts

Round Push Nuts

With flexible teeth that slide smoothly over threads of any pitch, these push nuts can be used alone for light-duty applications or as a jam nut.

Metric Round Push Nuts

These metric push nuts can be used as a standalone for light-duty applications or as a jam nut.

Rectangular Push Nuts

Also known as flat-style speed nuts, these have large sides, so they're easy to push over threads by hand.

Rectangular Push Nuts for Tapping Screws

Metric Clip-On Nuts for Flanged Edges

Slide these nuts on the edge of a panel and position them by hand. Also known as G-style clip-on nuts.

Clip-On Nuts for Flanged Edges

Also known as G-style clip on nuts, slide these nuts on the edge of a panel and position them by hand.

No-Slip Clip-On Hex Nuts

A hex-shaped barrel allows these clip-on nuts to be gripped with a wrench to hold them in place when tightening a screw. They have multiple threads for more thread engagement than low-profile clip-on nuts.

Steel Snap-In Nuts

Snap these nuts into square holes in thin materials.

Stainless Steel Snap-In Nuts

Stainless steel snap-in nuts have excellent corrosion resistance in most environments.

Mil. Spec. Rivet-Mount Nuts

Create threads in hard-to-work areas—where you can’t reach the back of a workpiece, or material is too thin to be tapped.

Aligning Weld Nuts

Threads float inside the retainer so you can install a bolt at a slight angle to align with off center parts.

Metric Aligning Weld Nuts

Threads float inside the retainer of these metric nuts so you can install a bolt at a slight angle to align with off center parts.

Retaining Rings

Push-On External Retaining Rings

No groove required—press these rings onto the end of a shaft for a firm grip.

Rectangular Push-On External Retaining Rings

Also known as flat-style speed nuts, these have a large surface to distribute loads better than standard and flanged external push rings.

Flanged Push-On External Retaining Rings

The wide flange provides better load distribution than standard external push rings and can be used to cover oversized holes. Also known as thread cutting nuts.

Push-On Retaining Caps

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

Side-Mount External Retaining Rings

Also known as E-style rings.

Wide-Grip Side-Mount External Retaining Rings

Also known as poodle rings, these thick rings have "ears" that form a large retaining surface to withstand stronger forces than other side-mount retaining rings.

Single-Turn Spiral External Retaining Rings

Slide these rings into place with one twist—no tools required—for applications with high thrust loads.

Single-Turn Spiral Internal Retaining Rings

Slide these rings into place by hand with a single twist for applications with high thrust loads.

Push-On Internal Retaining Rings

No groove required—these rings have teeth that firmly grip the bore.

Wire-Lockable Retainers for Hex Head Screws and Nuts

Place one of these retainers around a hex head screw or nut, then attach wire to lock the screw or nut in place and keep it from loosening.

Side-Mount External Retaining Ring Assortments

Also known as E-Style and C-style rings, slide these into the groove from the side of the shaft. They provide a wider shoulder than other external retaining rings for a larger retaining surface.

Socket Retaining Rings

Two-Piece Socket Retaining Rings

One-Piece Socket Retaining Rings

Tag Rings

Loop these rings onto tags.