Socket Pins | McMaster-Carr

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674 Products

Socket Retaining Rings

One-Piece Socket Retaining Rings

Two-Piece Socket Retaining Rings

Electrical Connectors

Build-Your-Own Molex Compact Connectors

Configure a connector for your application—combine housings with pins and sleeves for different wire sizes. Use them with standard Molex connectors.

Build-Your-Own Weatherproof DC Connectors

Configure a connector for your application by combining housings with pins and sleeves for different wire sizes. Also known as weather-pack connectors, they withstand moisture, harsh engine fluids, and high temperatures.

Weatherproof DC Connector Sets

Each set includes one plug and one socket. These connectors withstand moisture, harsh engine fluids, and high temperatures. Also known as weather-pack connectors.

Ready-to-Use Weatherproof DC Connectors

Quickly replace or add connectors to an existing wiring system—connectors come assembled with wire leads already installed. Also known as weather-pack connectors, they withstand moisture, harsh engine fluids, and high temperatures.

Panel-Mount Deutsch-Style DC Connectors

Install these connectors in panels, enclosures, and bulkheads to join equipment with compatible Deutsch-style DC connectors.

Deutsch-Style DC Connectors

Use these connectors in vehicles and other agricultural and construction equipment.

Build-Your-Own Amphenol Circuit Board Connectors

Attach wires to your circuit board with these Amphenol PV connectors.

Build-Your-Own Molex Circuit Board Connectors

Connect wires to your circuit board with these Molex KK push-in connectors.

Build-Your-Own Molex Circuit Board
Connectors with Locking Tab

Connect wires to circuit boards with Molex Mini-Fit push-in connectors. A locking tab holds the housing and plug together once they’re mated.

Wire Terminals and Terminal Blocks

Noninsulated Snap-Plug Terminals

Also known as bullet terminals, these have a round tab that requires less space than the flat tab found on most quick-disconnect terminals. Because they are noninsulated, you can easily inspect the wire connection.

Insulated Snap-Plug Terminals

The connection on these terminals is completely covered with insulation when mated, leaving no metal exposed and preventing short-circuiting with nearby wire. Also known as bullet terminals, these have a round tab that requires less space than the flat tab found on most quick-disconnect terminals.

Heat-Shrink Snap-Plug Terminals

When heat is applied, the insulation shrinks and creates a seal that keeps out water and contaminants. Also known as bullet terminals, these have a round tab that requires less space than the flat tab found on most quick-disconnect terminals.

Solder-Loaded Heat-Shrink Snap-Plug Terminals

When heated, the enclosed solder in these terminals melts forming the most secure and electrically conductive connection we offer. The plastic insulation also shrinks when heated, sealing out water and contaminants. Also known as bullet terminals.

Heat-Shrink Pin Terminals

When heat is applied, the insulation on these terminals shrinks, creating a seal that keeps out water and contaminants. These solid pin terminals make it easier to insert stranded wire into screw-clamp connections.

Noninsulated Pin Terminals

Since these terminals aren’t insulated, you can easily inspect the wire connection. The solid pin makes it easier to insert stranded wire into screw-clamp connections.

Insulated Pin Terminals

A plastic cover insulates the barrel to prevent short-circuiting with nearby wire.

Insulated Compression Pin Lugs

Solid pins make it easy to insert stranded wire into screw-clamp connections. The plastic cover on the barrel of these lugs provides electrical insulation to prevent short-circuiting with nearby wire.

Deutsch-Style Power Cords

Use these cords in vehicles and other agricultural and construction equipment.

Fasteners

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.

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.

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.

Single-Turn Spiral External Retaining Rings

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

Push-On Internal Retaining Rings

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

Single-Turn Spiral Internal Retaining Rings

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

Split Rings

Also known as key rings, twist these rings into place to secure clevis pins, connect components, or add a pull handle. They don't have the sharp ends of other cotter pins.

Rectangular Push Nuts for Tapping Screws

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.

Rectangular Push Nuts

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

Shower Curtain Hooks

Tag Rings

Loop these rings onto tags.