4 Millimeter Sockets | McMaster-Carr

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System of Measurement

Drive Style

External 12-Point

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Drive Size

Square Drive Size

Socket Style

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Sold As

Overall Length

1 1/2" to 1 3/4"

1 1/2" to 1 7/8"

1 11/16" to 1 7/8"

Socket Shape

Thread Size

Bolt Clearance Type

Number of Pieces

Finish

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Drive Type

Container Type

Metal Clip Rail

Plastic Clip Rail

Material

Stainless Steel

Socket Type

Driver Style

Fastener Head Type

Set Type

Sockets with Drive Tools

Bit Replaceable

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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1,245 Products

Fastening and Joining

Bit Sockets

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

Sockets

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

Socket Bits

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

Screwdrivers

Tighten and loosen screws

Impact Drivers

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

Nutdrivers

Tighten and loosen nuts and bolts

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

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

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

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