Box Sockets | McMaster-Carr

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420 Products

Square Drive Sockets and Ratchet Wrenches

Box-End Wrench Heads

Attach one of these heads to your square-drive ratchet or torque wrench to extend its reach or to access spaces with limited vertical clearance.

Box-End Wrench Head Sets

Attach one of the heads in these sets to a torque wrench for more leverage to loosen a stubborn fastener.

Snap-Open Ratcheting Box-End Wrench Head Sets

Get a strong grip in tight areas, even on fasteners that are rounded or damaged.

Bolt-Through Ratchet Wrenches

Pair these wrenches with a bolt-through socket to reach nuts at the bottom of a long threaded rod or bolt which can pass through the head of the wrench.

Box Wrenches

Deep-Offset Box Wrenches

The heads are angled to provide clearance around obstructions.

Box Wrenches

Two-Head Box Wrenches

Nonsparking Box Wrenches

Made of aluminum-bronze that is Factory Mutual approved, these wrenches inhibit sparking and are nonmagnetic and corrosion resistant.

Curved Box Wrenches

Also known as half-moon and obstruction wrenches, the shape lets you reach around obstacles and into machinery.

Two-Head Ratcheting Box Wrenches

Ratchet mechanisms allow you to turn fasteners in tight spaces without removing and repositioning the tool.

Ratcheting Box Wrenches

A ratchet mechanism allows you to turn fasteners in tight spaces without removing and repositioning the wrench.

Electrical-Insulating Ratcheting Box Wrenches

An insulated handle protects against accidental contact with live electrical circuits. These wrenches are tested to 1,000 volts to meet IEC 60900.

Two-Head Deep-Offset Ratcheting Box Wrenches

The 25° offset heads give you additional clearance to turn hard-to-reach fasteners.

Deep-Offset Ratcheting Box Wrenches

The offset head gives you additional clearance to turn hard-to-reach fasteners.

Extended-Reach Ratcheting Box Wrenches

An extra-long handle provides access to hard-to-reach fasteners and increases leverage.

Snap-Open Ratcheting Box Wrenches

Open the jaws to fit around a fastener like an open-end wrench; close the jaws and the wrench acts like a ratcheting box wrench.

Tapered-Handle Box Wrenches

Also known as spud, structural, and construction wrenches, use the pointed end of the handle to align bolt holes during assembly.

High-Leverage Box Wrenches

The long handle provides extra leverage—add an extension to increase it even more.

Deep-Offset High-Leverage Box Wrenches

The head is offset 45° to provide clearance for reaching over obstructions.

Deep-Offset Striking Box Wrenches

The head is offset 45° to provide clearance for reaching over obstructions.

Striking Box Wrenches

Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.

Nonsparking Striking Box Wrenches

Made of aluminum-bronze that is Factory Mutual approved, these wrenches inhibit sparking and are nonmagnetic and corrosion resistant.

Box Wrench Sets

Deep-Offset Box Wrench Sets

The heads are offset 45° to provide clearance for reaching over obstructions.

Box Wrench Sets

These wrenches are polished for a mirror-like finish.

Deep-Offset Ratcheting Box Wrench Sets

The heads are offset to provide clearance for reaching over obstructions.

Snap-Open Ratcheting Box Wrench Sets

Open the jaws to fit around a fastener like an open-end wrench; close the jaws and the wrench acts like a ratcheting box wrench.

Ratcheting Box Wrench Sets

A ratchet mechanism allows you to turn fasteners in tight spaces without removing and repositioning the wrench.

Changeable-Head Torque Wrenches

Change heads to use these tools as an open-end, box, square drive, or hex-key wrench.

Welding Tank Wrenches

Turn valve stems, nuts, and caps on welding tanks.

Drum Plug Wrenches

Also known as bung wrenches, these tools are used to install and remove screw-in drum plugs.

Nonsparking Drum Plug Wrenches

Made of spark-inhibiting materials, these wrenches are also corrosion resistant.