Steel Box Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Wrench Style

Wrench Opening Shape

Head Style

Ratcheting

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Drive Style

External 12-Point

External Pentagon

External Spline

External Square

Overall Length

3 1/4" to 5 1/2"

3 3/8" to 4 5/16"

3 1/2" to 5 3/8"

3 1/2" to 5 1/2"

3 19/32" to 8 41/64"

Finish

Head Thickness

Appearance

Material

Stainless Steel

Relative Length

Head Offset Angle

Number of Pieces

Wrench Type

Number of Heads

Opening Angle

Length

3 1/4" to 5 1/2"

3 3/8" to 4 5/16"

3 1/2" to 5 3/8"

3 1/2" to 5 1/2"

3 19/32" to 8 41/64"

Grade

For Use With

Fire Hose Fittings

Screws and Nuts

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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932 Products

Fastening and Joining

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Wrench Heads

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

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Tank Wrenches

Turn valve stems, regulator inlet nuts, and caps on welding tanks

Drum Plug Wrenches

Drum Plug Wrenches

Install and remove screw-in drum plugs; also known as bung wrenches

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Fire Hose and Hydrant Wrenches

Fire Hose and Hydrant Wrenches

Open and close hydrant caps, install sprinkler heads, and fasten fire hose fittings

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