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

Length

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

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Magnesium Phosphate Coated

Manganese Phosphate Coated

Drive Type

Tip Style

Fastener Head Type

Nut Diameter

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

REACH

Specifications Met

Federal Specification

MSS SP-69 Type 15

Export Control Classification Number (ECCN)

Number of Pieces

How can we improve?

41,394 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

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

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 Bits

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

Socket Wrenches

Socket Wrenches

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

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Ratchet Wrench/Screwdrivers

Ratchet Wrench/Screwdrivers

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

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

Ball Joint Sockets

Ball Joint Sockets

Install and remove ball joints in suspension and steering systems

Socket Inserts

Slip into sockets to keep fasteners from falling out

Socket Drivers

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

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

Box Wrenches

Grip all sides of a fastener to prevent slipping

Torque Multipliers

Torque Multipliers

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

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Nutdrivers

Tighten and loosen nuts and bolts

Screwdrivers

Tighten and loosen screws

Bit Adapters

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

Nut Starters

Begin turning nuts in hard-to-reach spots

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Impact Drivers

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

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

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

Rounded Head Screws

Rounded Head Screws

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

Flat Head Screws

Flat Head Screws

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

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 Power, Networking, and Controlling

Power Connectors

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

RJ45 Connectors

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

USB Connectors

Plugs, sockets, receptacles, and adapters to make USB connections

Metric Circular Connectors

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

D-Sub Connectors

D-Sub Connectors

Plugs, sockets, receptacles, and adapters for connecting computers, monitors, and printers

Molex Connectors

Molex Connectors

Plugs, sockets, and housings for making Molex connections

CB Radio Sockets

CB Radio Sockets

Pair with receptacles to connect CB radios

Coaxial Connectors

Coaxial Connectors

Plugs, sockets, receptacles, and adapters to make coaxial connections

Solenoid Valve Connectors

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

Mil. Spec. Connectors

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

Audio Connectors

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

AMP Connectors

Build-your-own and ready-to-use AMP connectors

Amphenol Connectors

Amphenol Connectors

Attach wires to a circuit board

Mini Connector Thread Adapters

Mini Connector Thread Adapters

Join two connectors that both have internal threads

Han Connectors

Plugs and sockets to make Han connections

Ecomate Connectors

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

Mini Connectors

Mini Connectors

Plugs, sockets, and receptacles send power and control signals to equipment and automated systems

ix Industrial Sockets

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

DMX Connectors

Replace damaged plugs and sockets on lighting cables

Breakaway Connectors

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

Micro 360 Connectors

Micro 360 Connectors

Plugs and sockets to make control and data connections in tight spaces

Latching Connector Housings

Latching Connector Housings

Everything you need to build a plug housing and a socket housing

HDMI Adapters

Convert one HDMI size or style to another

Power Cords

Connect equipment and devices to a power source

Metric Circular Cords

Metric Circular Cords

Send power and signal to equipment with metric connections

Extension Cords

Extension Cords

Extend the reach of power from an outlet

Solenoid Valve Cords

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

USB Cords

Transfer data between computers, printers, and mobile devices

Ethernet Cords

Send data between computers, printers, servers, and switches

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

Sensor Signal Adapter Cords

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

Outlet Strips

Plug in multiple devices to power them from a single outlet

USB Chargers

Power up mobile devices and other electronics

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Welding Cable Connectors

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

Distribution Blocks

Distribution Blocks

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

Outlet Strip Mounts

Outlet Strip Mounts

Snap in outlet strips for quick mounting on flat surfaces

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

Monitoring Relays

Monitoring Relays

Trip circuits or sound an alarm when voltage, current, or other limits are exceeded

Alternating Relays

Alternating Relays

Automatically split run time between two devices so one isn't always running

Circuit Board Connectors

Circuit Board Connectors

Connect flat flexible cable to circuit boards

Vehicle Relays

Switch high-current loads on vehicles, such as starters, headlights, and fuel pumps

Latching Relays

Latching Relays

Lock into position so they don't require constant voltage to stay switched

Battery Chargers

Battery Chargers

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

Raceway

Route and guard wiring along surfaces in your facility

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

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 Connector Adapters

Thermocouple Connector Adapters

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

Thermocouple and RTD Mounts

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

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

Light Switch/Receptacles

Light Switch/Receptacles

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

Light Switch Sensor Controllers

Light Switch Sensor Controllers

Turn lights on and off or dim them in unison from a secure Bluetooth network

Light Bulb Holders

Light Bulb Holders

Secure fluorescent, LED, and miniature light bulbs in place

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 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 Balls

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

Hitch Kits

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

Hitch-Ball Couplers

Hitch-Ball Couplers

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

Hitch Inserts

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

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 Plugs

Wire Rope Plugs

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

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 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

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 Seals

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

Rod End Inserts

Rod End Inserts

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

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

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

Facility and Grounds Maintenance

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

Measuring and Inspecting

Power Consumption Meters

Power Consumption Meters

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

Spring Test Probe Sockets

Spring Test Probe Sockets

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

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

Lathe Tool Insert Holder Replacement Parts

Lathe Tool Insert Holder Replacement Parts

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

Tap Holders

Work like sockets to connect taps to ratchet wrenches

Machine Taper Shank Adapters

Machine Taper Shank Adapters

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

Machine Taper Shank Extensions

Machine Taper Shank Extensions

Lengthen the reach of your machine taper shank

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

Heating, Ventilation, and Air Conditioning

Temperature-Controlled Outlet Adapters

Temperature-Controlled Outlet Adapters

Automatically turn heating and cooling devices on and off as temperatures rise and fall

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.)