Sockets | McMaster-Carr

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System of Measurement

Drive Size

Square Drive Size

Bolt Clearance Type

Socket Shape

Rounded 4-Point

OD

Thread Size

4-40 to 5/16"-32

Overall Length

15/16" to 1 1/8"

31/32" to 3 1/16"

Socket Style

Sold As

Material

Stainless Steel

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Magnesium Phosphate Coated

Socket Type

Air Hammer Adapter

Dual-Drive Socket Adapter

Finger-Tightening Adapter

Hex Head Adapter

Hex Shank-to-Square Drive Adapter

Quick-Change Adapter

Ratchet Adapter

Secure-Hold Extension

Secure-Hold Socket Adapter

Spline Drive-to-Square Drive Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

Drive Type

Length

Tip Style

Fastener Head Type

RoHS

Compliant with Exemptions

REACH

Specifications Met

Federal Specification

MSS SP-69 Type 15

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Number of Pieces

Wrench Style

Wrench Opening Shape

12-Point Sure Grip

How can we improve?

40,778 Products

Fastening and Joining

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Drum Plug Sockets

Drum Plug Sockets

Turn with a ratchet wrench to install and remove screw-in drum plugs

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Socket Bits

Switch out worn or damaged bits instead of replacing your entire bit socket

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Nut Pullers

Yank out a nut stuck inside a socket or other recess

Wrench Handles

Generate extra torque to loosen stubborn fasteners; also known as breaker bars

Socket Inserts

Slip into sockets to keep fasteners from falling out

Ratchet Wrench/Screwdrivers

Ratchet Wrench/Screwdrivers

Switch between sockets and bits to turn a variety of fasteners with a single tool

Socket Drivers

Tighten and loosen sockets from above when there isn't room to swing a standard wrench

Ball Joint Sockets

Ball Joint Sockets

Install and remove ball joints in suspension and steering systems

Impact Wrenches

Impact Wrenches

Maximize torque to break frozen bolts free and drive fasteners more quickly than other wrenches

Oil Filter Sockets

Oil Filter Sockets

Twist with a ratchet wrench to adjust filters and other round objects in tight spots

Torque Multipliers

Torque Multipliers

Pair with a torque wrench to amplify torque while staying within a specific range

Box Wrenches

Grip all sides of a fastener to prevent slipping

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Nutdrivers

Tighten and loosen nuts and bolts

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

Screwdrivers

Tighten and loosen screws

Nut Starters

Begin turning nuts in hard-to-reach spots

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Threaded Rod and Stud Driver Bits

Threaded Rod and Stud Driver Bits

Quickly install threaded rods and studs with a cordless drill, instead of by hand

Impact Drivers

More powerful than drills to drive screws through dense material and loosen stuck fasteners

Speeder Handles

Speeder Handles

Crank the handle to fasten nuts and bolts quickly

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

Remove broken screws, pipes, and studs without damaging the threads around them

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Coupling Nuts

Connect and extend threaded rods

Hex Nuts

Handle most general fastening needs

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Electrical

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Electrical Receptacles

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

Electrical Plugs

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

Outlet Strips

Plug in multiple devices to power them from a single outlet

Outlet Strip Mounts

Outlet Strip Mounts

Snap in outlet strips for quick mounting on flat surfaces

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Electrical Adapters

Electrical Adapters

Change electrical connectors to another type, size, or gender

Electrical Connector Thread Adapters

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

Electrical Connector Contacts

Electrical Connector Contacts

Crimp wire into pins and sleeves to create custom Molex or Amphenol connectors

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Distribution Blocks

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

Battery Chargers

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

Relay Sockets

Quickly mount relays to DIN rail or flat surfaces

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

Light Switch/Receptacles

Light Switch/Receptacles

Combine a switch and receptacle into a single outlet box for a small footprint

Raceway and Raceway Fittings

Raceway and Raceway Fittings

Route and guard wiring along indoor surfaces

Fluid Handling

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

Thermocouple and RTD Mounts

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

Thermocouple Connector Adapters

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

Lighting

Light Sockets

Install or replace sockets in fixtures for standard household, tubular, compact, or miniature bulbs

Light Socket Adapters

Light Socket Adapters

Convert light fixtures to accept different bulbs

Light Socket Pull Cords

Light Socket Pull Cords

Lengthen pull-chain light switches

Lamp Pipe Fasteners

Lamp Pipe Fasteners

Fasten lamp pipe to a socket or base to build and repair lamps

Lamp Pipe

Connect lamp components and conceal wires when building or repairing lamps

Light Bulb Holders

Light Bulb Holders

Secure fluorescent, LED, and miniature light bulbs in place

Light Lenses

Reduce glare from light bulbs and protect them from damage

Material Handling

Caster Sockets

Mount on the inside corners of channel and other framing to attach stem casters

Hitch Pins

Secure hitch inserts to hitch receivers for towing

Hitch Receivers

Hitch Receivers

Use with hitch inserts and pins to create a complete hitch for towing

Hitch Inserts

Fit into hitch receivers and secure with a hitch pin to create a connection for towing

Hitch Balls

Mount to hitch inserts and use with hitch receivers and couplers to tow trailers

Hitch-Ball Couplers

Hitch-Ball Couplers

Bolt or weld to trailers and connect to hitch balls on vehicles for towing

Hitch Kits

Everything you need to attach a hitch to your vehicle’s receiver

Tow Eyes

Mount to trailers and connect to tow hooks or drawbar couplers on vehicles for towing

Tow Hooks

Bolt to vehicles and connect to tow eyes on trailers for towing

Forklift Hitch Receivers

Forklift Hitch Receivers

Secure to forklift forks and slide in a hitch to adapt a forklift for towing

Drawbar Couplers

Drawbar Couplers

Use with drawbar rings to connect trailers to vehicles; also known as pintle hitches

Wire Rope End Fittings

Wire Rope End Fittings

Finish wire rope ends with threaded stud, eye, clevis, ball, hook, and other connections

Wire Rope Stops

Wire Rope Stops

Prevent wire rope from pulling out of cleats and guides or keep ends from fraying

Wire Rope Plugs

Wire Rope Plugs

Secure wire rope in end fittings with a plug-lock connection

Wire Rope Thimbles

Wire Rope Thimbles

Support the weight of wire rope loops to prevent fraying, snagging, and tangling

Wire Rope Plug Installation Kits

Wire Rope Plug Installation Kits

Drive plugs into the end of wire rope while protecting the strands from nicks

Wire Rope Compression Sleeves

Wire Rope Compression Sleeves

Install a permanent loop at wire rope ends using a compression tool

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

Facility and Grounds Maintenance

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

Containers, Storage, and Furniture

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

Power Transmission

Swivel Joints

Handle shaft misalignment where ball joint rod ends won’t fit; also known as spherical bearings

Rod End Inserts

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

Gas Spring End Fittings

Gas Spring End Fittings

Connect gas springs to mounting studs and brackets

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Measuring and Inspecting

Spring Test Probe Sockets

Spring Test Probe Sockets

Pair with spring test probes to test for continuity and damaged components in circuit boards

Power Consumption Meters

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

Fabricating and Machining

Tap Holders

Connect taps to ratchet wrenches, drill presses, or milling machines

Lathe Tool Insert Holder Replacement Parts

Lathe Tool Insert Holder Replacement Parts

Replace clamps, screws, shims, and other parts in lathe tool insert holders

Drill Chuck Arbor Adapters

Drill Chuck Arbor Adapters

Convert your Morse taper arbor to fit machine spindles that are too small or large

Drill Chuck Arbor Extensions

Drill Chuck Arbor Extensions

Lengthen the reach of your drill chuck arbor

Communication

Reference Charts

Reference Charts

Check decimal equivalents, drill sizes, or specifications for socket screws

Sealing

Hose Coupling Gaskets

Hose Coupling Gaskets

Form tight seals on cam-and-groove, grip-lock, and twist-claw hose connections

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

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