E-Clips | McMaster-Carr

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Groove Diameter

Retaining Ring Style

System of Measurement

Retaining Ring Type

Ring Thickness

Groove Width

Material

Ring OD

Ring ID

Finish

Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

Magnetic Properties

Magnetic

May Be Mildly Magnetic

Color

Specifications Met

RoHS

REACH

Thrust Load Capacity

10,000 lbf to 19,999 lbf

20,000 lbf to 99,999 lbf

100,000 lbf to 199,999 lbf

200,000 lbf or greater

Not Rated

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Side-Mount External Retaining Rings Included

For 1 3/16" OD (12 Pieces)

For 1/16" OD (200 Pieces)

For 1/2" OD (20 Pieces)

For 1/2" OD (25 Pieces)

For 1/2" OD (40 Pieces)

For 1/2" OD (50 Pieces)

For 1/4" OD (25 Pieces)

For 1/4" OD (30 Pieces)

For 1/4" OD (50 Pieces)

For 1/4" OD (90 Pieces)

For 1/8" OD (150 Pieces)

For 1/8" OD (30 Pieces)

For 3 mm OD (20 Pieces)

For 3 mm OD (40 Pieces)

For 3/16" OD (100 Pieces)

Passivation

Passivated

Unpassivated

Side-Mount Retaining Ring Style

For Rings That Fit OD

Length

Insert Material

1,608 Products

External Retaining Rings

Side-Mount External Retaining Rings

Also known as E-style rings.

Heavy Duty Side-Mount External Retaining Rings

These rings are reinforced to withstand faster rotation than other side‐mount retaining rings. Also known as reinforced E‐style rings.

Low-Clearance Side-Mount External Retaining Rings

Also known as C-style and crescent rings, these rings have a small shoulder to fit in tight spaces.

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.

Bowed Side-Mount External Retaining Rings

Also known as bowed E-style rings, these have a curved design that works like a spring, taking up play for a tight hold.

External Retaining Rings

Open these rings, pass them over the end of a shaft, and release to spring into the groove.

Heavy Duty External Retaining Rings

Thicker than standard external retaining rings, these rings withstand greater force.

Mil. Spec. External Retaining Rings

These rings meet military specification MS 16624.

Self-Locking External Retaining Rings

No groove is required for these rings—their thick profile helps them grip the shaft.

Inverted External Retaining Rings

For a smooth profile and better clearance than standard external retaining rings, the lugs on these rings point inward.

Bowed External Retaining Rings

The curved design of these rings works like a spring, taking up play for a tight hold.

Push-On External Retaining Rings

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

Push-On Retaining Caps

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

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.

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.

Crimp-On External Retaining Rings

Also known as X-washers, place these rings into the groove and squeeze tight with pliers to form a 360° closure.

Heavy Duty Spiral External Retaining Rings

Thicker than standard spiral rings, these rings withstand greater forces.

Single-Turn Spiral External Retaining Rings

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

Spiral External Retaining Rings

These coiled rings can be wound into place on a shaft without tools.

Speared Ends External Retaining Rings

Often used with small engines, heavy equipment, and power transmission, these external retaining rings have speared ends to help you install and remove them.

Clip-On External Retaining Rings

Slide these rings into a groove near the end of the shaft and the tab locks them in place.

Low-Clearance External Retaining Rings

Also known as constant-section rings, these rings have open ends and a profile that does not taper like other external retaining rings. Use them with linear bearings on support rail shafts.

Retaining Ring Assortments

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.

External and Side-Mount
Retaining Ring Assortments

Assortments include pliers to install external rings.

External Retaining Ring Assortments

Pull these rings open with retaining ring pliers, pass over the end of a shaft, and release to spring into a groove.

External, Internal, and Side-Mount
Retaining Ring Assortments

These assortments include pliers to install external and internal rings.

External and Internal Retaining Ring Assortments

Assortments include pliers to install external and internal rings.

External and Internal Spiral
Retaining Ring Assortments

Wind these retaining rings into a groove—no tools required for installation.

Retaining Ring Pliers

E- and C-Style Side-Mount Retaining
Ring Installation and Removal Tools

The spring on one end of the tool holds the retaining ring in position for installation and the hook on the other end is for removal.

E-Style Side-Mount Retaining Ring Installation Tools

Slide the retaining ring in between the jaws of the tool and push the ring onto a shaft.

Poodle-Style Side-Mount
Retaining Ring Installation Tools

Install rings that have wide "ears." Slide the retaining ring in between the jaws of the tool and push the ring onto a shaft.

Flat-Tip Retaining Ring Pliers

Hold open retaining rings without holes, such as flat- and pointed-tip lock rings. Also known as Eaton-style, constant-section, and horseshoe snap rings.

Parallel-Jaw Flat-Tip Retaining Ring Pliers

The jaws on these pliers move parallel to each other for a good grip when holding open retaining rings without holes.

Heavy Duty Flat-Tip Retaining Ring Pliers

Often used to hold open retaining rings without holes, these pliers have a forged construction for strength, durability, and a long life.

Heavy Duty Fixed-Tip Retaining Ring Pliers Sets

The pliers in these sets have a forged construction, which provides high strength for durability and long life.

Heavy Duty Fixed-Tip Retaining Ring Pliers

The forged construction provides high strength for durability and long life.

Nonsparking Fixed-Tip Retaining Ring Pliers

Made of beryllium copper that is FM approved, these pliers satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Fixed-Tip Retaining Ring Pliers

Install and remove rings inside a bore or around a shaft.

Changeable-Tip Retaining Ring Pliers Sets

Change tips to use a different size or angle.

Heavy Duty Changeable-Tip
Retaining Ring Pliers Sets

The forged construction provides high strength for durability and long life. Use the included hex key to change tips for a different size or angle.

Locking Changeable-Tip Retaining Ring Pliers Sets

The pliers in these sets have a handle that locks in place to hold rings open or closed for easier installation and removal. Change tips to use a different size or angle.

Locking Changeable-Tip Retaining Ring Pliers

The handle locks in place to hold rings open or closed for easier installation and removal.

External Retaining Rings

Side-Mount External Retaining Rings

Heavy Duty Side-Mount External Retaining Rings

Low-Clearance Side-Mount External Retaining Rings

Wide-Grip Side-Mount External Retaining Rings

Bowed Side-Mount External Retaining Rings

External Retaining Rings

Heavy Duty External Retaining Rings

Mil. Spec. External Retaining Rings

Self-Locking External Retaining Rings

Inverted External Retaining Rings

Bowed External Retaining Rings

Push-On External Retaining Rings

Push-On Retaining Caps

Flanged Push-On External Retaining Rings

Rectangular Push-On External Retaining Rings

Crimp-On External Retaining Rings

Heavy Duty Spiral External Retaining Rings

Single-Turn Spiral External Retaining Rings

Spiral External Retaining Rings

Speared Ends External Retaining Rings

Clip-On External Retaining Rings

Low-Clearance External Retaining Rings

Retaining Ring Assortments

Side-Mount External Retaining Ring Assortments

External and Side-MountRetaining Ring Assortments

External Retaining Ring Assortments

External, Internal, and Side-MountRetaining Ring Assortments

External and Internal Retaining Ring Assortments

External and Internal SpiralRetaining Ring Assortments

Retaining Ring Pliers

E- and C-Style Side-Mount RetainingRing Installation and Removal Tools

E-Style Side-Mount Retaining Ring Installation Tools

Poodle-Style Side-MountRetaining Ring Installation Tools

Flat-Tip Retaining Ring Pliers

Parallel-Jaw Flat-Tip Retaining Ring Pliers

Heavy Duty Flat-Tip Retaining Ring Pliers

Heavy Duty Fixed-Tip Retaining Ring Pliers Sets

Heavy Duty Fixed-Tip Retaining Ring Pliers

Nonsparking Fixed-Tip Retaining Ring Pliers

Fixed-Tip Retaining Ring Pliers

Changeable-Tip Retaining Ring Pliers Sets

Heavy Duty Changeable-TipRetaining Ring Pliers Sets

Locking Changeable-Tip Retaining Ring Pliers Sets

Locking Changeable-Tip Retaining Ring Pliers

External and Side-Mount
Retaining Ring Assortments

External, Internal, and Side-Mount
Retaining Ring Assortments

External and Internal Spiral
Retaining Ring Assortments

E- and C-Style Side-Mount Retaining
Ring Installation and Removal Tools

Poodle-Style Side-Mount
Retaining Ring Installation Tools

Heavy Duty Changeable-Tip
Retaining Ring Pliers Sets