1⁄4 Inch Sockets | McMaster-Carr

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System of Measurement

Drive Size

Square Drive Size

Drive Style

External 12-Point

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

Socket Shape

Bolt Clearance Type

Socket Style

Sold As

OD

Overall Length

1 3/8" to 1 5/8"

1 1/2" to 1 7/8"

1 1/2" to 2 1/4"

Thread Size

4-40 to 5/16"-32

Socket Type

Drive Type

Tip Style

Finish

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Number of Pieces

Material

Grade 2 Titanium

Stainless Steel

Container Type

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Wrench Opening Shape

Shank Type

Quick-Change Hex

Driver Style

Wrench Style

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

How can we improve?

1,431 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

Wrench Heads

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

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

Socket Bits

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

Nut Starters

Begin turning nuts in hard-to-reach spots

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Nutdrivers

Tighten and loosen nuts and bolts

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Bit Adapters

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

Socket Head Screws

Socket Head Screws

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

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

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Rounded Head Screws

Rounded Head Screws

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

Building and Machinery Hardware

Protective Plugs

Protective Plugs

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

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