Black Oxide Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Wrench Style

Wrench Opening Shape

Head Style

Drive Style

External 12-Point

External Pentagon

External Rounded Square

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

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Overall Length

1 5/16" to 2 1/8"

1 5/16" to 4 11/16"

Head Thickness

Material

Length

1 5/16" to 2 1/8"

1 5/16" to 4 11/16"

Square Drive Size

Ratcheting

Grip Style

For Use With

Rings, Flanges, and Collars

Screws and Nuts

Number of Pieces

REACH

Export Control Classification Number (ECCN)

Number of Heads

RoHS

Tip Style

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

Relative Length

DFARS Specialty Metals

Socket Shape

Rounded 4-Point

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2,752 Products

Fastening and Joining

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Combination Wrenches

Combination Wrenches

Use the open end when tightening in cramped spaces and the box end when you need extra grip

Box Wrenches

Grip all sides of a fastener to prevent slipping

Adjustable Wrenches

Adjustable Wrenches

Adjust the jaws to fasten different size nuts, bolts, or workpiece

Spanner Wrenches

Spanner Wrenches

Grab onto holes and slots to turn collars, bearings, and other machine tool components

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Sockets

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

Ratchet Wrench/Screwdrivers

Ratchet Wrench/Screwdrivers

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

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

Wrench Handles

Generate extra torque to loosen stubborn fasteners; also known as breaker bars

Socket Bits

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

Backup Wrenches

Backup Wrenches

Pair with a head and handle to create a wrench that keeps nuts from turning as you tighten bolts

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Impact Wrenches

Impact Wrenches

Maximize torque to break frozen bolts free and drive fasteners more quickly than other wrenches

Ball Joint Sockets

Ball Joint Sockets

Install and remove ball joints in suspension and steering systems

L-Keys

Turn fasteners from either end and reach into tight spots

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Screwdrivers

Tighten and loosen screws

Torque-Limiting Keys

Torque-Limiting Keys

Used to install carbide inserts in cutting tools, a handle limits the amount of torque generated

Impact Drivers

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

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

Fabric-Stretching Pliers

Fabric-Stretching Pliers

Grip and pull thin materials without tearing them

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