Socket Adapters | McMaster-Carr

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Spline Drive-to-Square Drive Adapter

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Shank Type

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Socket Shape

Length

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For Bit Shank Type

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Compliant with Exemptions

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Export Control Classification Number (ECCN)

EAR99

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

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1,459 Products

Socket Adapters

Square Drive Size Adapters

Convert from one square drive size to another

17 products

Square Drive Adapters for Power Tools

Attach square-drive sockets to drills, powered screwdrivers, and other hex-shank tools

15 products

Hex Shank to Square Drive Adapters

Install in your bit screwdriver to turn sockets

5 products

Convertible Square Drive Size Adapters

Push the square drive through the adapter to change size

1 product

Dual-Drive Socket Adapter Sets

A hex-shaped base fits into a ratchet wrench or open-end or box wrench for additional leverage

1 product

Flex Socket Adapters

Convert your socket into a flex socket to access fasteners from an angle

12 products

Square Drive Adapter Sets for Power Tools

Keep a range of adapter sizes on hand to attach sockets to hex-shank power tools

1 product

Square Drive Size Adapter Sets

Keep a range of adapter sizes on hand to convert from one square drive size to another

5 products

Finger-Tightening Socket Adapters

Fit between a wrench and socket, and spin the adapter with a finger to tighten

6 products

Flex Socket Adapter Sets

Keep a range of adapter sizes on hand to convert sockets into flex sockets

1 product

Square Drive Adapters for Box Wrenches

Convert a ratcheting box wrench into a ratcheting socket wrench

3 products

Strong-Hold Socket Adapters

Lock to your tool and socket to prevent accidental disengagement

3 products

Adjustable Torque-Limiting Socket Adapters

Set a desired torque to prevent overtightening and damaging fasteners

13 products

Fixed Torque-Limiting Socket Adapters

Come set to a specific torque limit for tasks needing the same torque every time

32 products

Strong-Hold Flex Socket Adapters

Convert your socket into a flex socket without worrying about the adapter falling off

3 products

Electrically-Insulating Hex Shank to Square Drive Adapters

Turn sockets with a bit screwdriver and avoid accidental electrical shock

1 product

Ratcheting Socket Adapters

Change a standard wrench handle into a ratcheting wrench

3 products

Torque-and-Angle Measuring Socket Adapters

A digital display shows how torque measurements change as you turn the wrench

2 products

Electrically-Insulating Square Drive Size Adapters

Insulated to protect against shock from accidental contact with live circuits

3 products

Impact Socket Adapters

Impact Square Drive Size Adapters

Convert from one square drive size to another

23 products

Impact Square Drive Adapter Sets for Power Tools

Keep a range of adapter sizes on hand to attach impact square-drive sockets to hex-shank power tools

1 product

Impact Square Drive Adapters for Power Tools

Attach impact square-drive sockets to power drills, impact drivers, and other hex-shank tools

14 products

Impact Square Drive Size Adapter Sets

Keep a range of adapter sizes on hand to convert your impact tools from one square drive size to another

4 products

Impact Flex Socket Adapters

Convert your impact socket into a flex socket to access fasteners from an angle

15 products

Impact Magnetic Square Drive Size Adapters

A magnet holds the socket, making changes quicker

3 products

Impact Flex Socket Adapter Sets

Keep a range of adapter sizes on hand to convert impact sockets into flex sockets

1 product

Impact Quick-Change Socket Adapters

Pull the collar to quickly attach and remove sockets

7 products

Impact Spline Drive to Square Drive Adapters

Attach your square-drive impact socket to a spline-drive impact wrench

2 products

Impact Square Drive Adapters for Air Hammers

Combine air-hammer pulses and a hand wrench to loosen stuck fasteners without breaking them

2 products

Impact Torque-Limiting Socket Adapter Sets

Keep a range of adapter sizes on hand and prevent overtightening that can damage fasteners

1 product

Impact Torque-Limiting Socket Adapters

Prevent overtightening that can damage fasteners

5 products

Continuous-Use Socket Adapters

Continuous-Use Square Drive Adapters for Power Tools

Connect sockets to impact wrenches and other power tools in high-volume applications

3 products

Continuous-Use Square Drive Size Adapters

Last longer than standard impact adapters to tolerate high-volume applications

10 products

Other Products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

191 products

Bit Adapters

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

19 products

Sockets

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

24 products

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

246 products

Ratchet Wrench/Screwdrivers

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

1 product

Socket Bits

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

37 products

Power Connectors

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

428 products

Socket Wrenches

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

46 products

Light Socket Adapters

Convert light fixtures to accept different bulbs

5 products

USB Chargers

Power up mobile devices and other electronics

21 products

USB Cords

Transfer data between computers, printers, and mobile devices

79 products

Metric Circular Adapters

Join connectors of different sizes, configurations, or types

18 products

Solenoid Valve Sockets

Pair with plugs or receptacles to connect solenoid components

11 products

USB Adapters

Connect mismatched USB cords and devices

50 products

Audio Adapters

Connect two stereo cords or extend a connection

3 products

Temperature-Controlled Outlet Adapters

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

3 products

Mini Adapters

Create a branch off a main cord or connect multiple devices with mini connections to a single port

8 products