5⁄16 Inch Bit Sockets | McMaster-Carr

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Drilled Spanner

External 12-Point

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1 3/8" to 1 5/8"

1 1/2" to 1 7/8"

1 1/2" to 2 1/4"

1 5/8" to 1 7/8"

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Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

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Aluminum Bronze

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DFARS Specialty Metals

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How can we improve?

193 Products

Fastening and Joining

Bit Sockets

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

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

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Nutdrivers

Tighten and loosen nuts and bolts

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

Impact Drivers

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

Screwdrivers

Tighten and loosen screws

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