Check-Nut Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Wrench Style

Overall Length

Wrench Opening Shape

12-Point Sure Grip

Head Style

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Drive Style

External 12-Point

External Pentagon

External Square

Material

Stainless Steel

Head Thickness

Finish

Phosphate Coated

Square Drive Size

Circle Diameter

15/32" to 35/64"

25/32" to 3 15/16"

63/64" to 1 7/64"

1 3/16" to 1 17/64"

Ratcheting or Nonratcheting

Jaw Texture

Spanner Wrench Style

For Use With

Fire Hose Fittings

Rings, Flanges, and Collars

Round and Irregular Objects

Screws and Nuts

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Jaw Type

Number of Heads

Pin Diameter

Jaw Style

Wrench Type

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766 Products

Fastening and Joining

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Adjustable Wrenches

Adjustable Wrenches

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

Pipe Wrenches

Serrated jaws grasp and turn pipe, conduit, and fittings

Water Meter Wrenches

Water Meter Wrenches

Turn meter couplings and shut-off valve nuts on water meters

Sockets

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

Spanner Wrenches

Spanner Wrenches

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

Fire Hose and Hydrant Wrenches

Fire Hose and Hydrant Wrenches

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

Combination Wrenches

Combination Wrenches

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

Pipe/Valve Wheel Wrenches

Pipe/Valve Wheel Wrenches

Grip and turn pipe with one end and loosen valve wheels with the other

Wrench Heads

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

Fabricating and Machining

Adjustable Pliers

Adjustable Pliers

A range of jaw positions for turning fasteners and gripping workpieces

Locking Pliers

Clamp workpieces and lock them in place to keep your hands free

Containers, Storage, and Furniture

Wrench Organizers

Wrench Organizers

Keep wrenches in order at your workstation or when carrying them around your facility

Sealing

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

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