Spanner Nut Sockets | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Size Size

	Socket Shape Socket Shape

4-Pin

6-Pin

8-Point

	Square Drive Size Square Drive Size

3/8"

1/2"

3/4"

	OD OD

	Material Material

	Spanner Wrench Style Spanner Wrench Style


Pin	Hook

	For Nut Diameter For Nut Diameter

	Individual/Set Individual/Set

Individual

Set

	For Nut Thread Size For Nut Thread Size

	For Circle Diameter For Circle Diameter

	Spanner Wrench Type Spanner Wrench Type

Adjustable

Fixed

	Overall Length Overall Length

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Pin Shape Pin Shape

Round

Square

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Number of Pieces Number of Pieces

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Pin Diameter Pin Diameter

	Bolt Clearance Depth Bolt Clearance Depth

	For Use With For Use With

Rings, Flanges, and Collars

Round and Irregular Objects

	For Bearing Nut Specifications Met For Bearing Nut Specifications Met

	Finish Finish

166 Products

Square Drive Sockets and Ratchet Wrenches

Spanner Sockets

For easy tightening and loosening, these sockets have pins that grip the slotted sides on bearing nuts.

Wheel Bearing Locknut Socket Sets

Shaped and sized for compatibility with wheel bearing locknuts on trucks and trailers, the sockets in these sets make it easy to install and remove locknuts.

Pin Spanner Wrenches for Holes on the Face

Dual-Size Adjustable Pin Spanner
Wrenches for Holes on the Face

Reverse the pins when you need to fit different hole sizes on the face of collars, bearings, and other machine tool components.

Square Drive Dual-Size Adjustable Pin
Spanner Wrenches for Holes on the Face

Use your ratchet wrench as a handle.

Tight-Clearance Adjustable Pin Spanner
Wrenches for Holes on the Face

The slim profile fits the flanges and nuts on the backing pads of portable sanders and grinders.

Adjustable Pin Spanner
Wrenches for Holes on the Face

Hinged for adjustability, these wrenches fit a range of diameters.

Multi-Size Adjustable Pin Spanner
Wrenches for Holes on the Face

Change out the pins to fit a different hole size.

Pin Spanner Wrenches for Holes on the Face

Grip the round holes on the face of collars, bearings, and other machine tool components.

Hook Spanner Wrenches for Slots on the Side

Adjustable Hook Spanner Wrench
Sets for Slots on the Side

Corrosion-Resistant Adjustable Hook
Spanner Wrench Sets for Slots on the Side

Made of stainless steel, these wrenches have excellent corrosion resistance.

Deep-Reach Adjustable Hook Spanner
Wrenches for Slots on the Side

In addition to a long handle, these wrenches include two heads with different hook widths.

Adjustable Hook Spanner
Wrenches for Slots on the Side

The head pivots to accommodate a range of diameters.

Corrosion-Resistant Adjustable Hook
Spanner Wrenches for Slots on the Side

These wrenches are made of stainless steel for excellent corrosion resistance.

Nonsparking Adjustable Hook Spanner
Wrenches for Slots on the Side

Made of aluminum-bronze that is Factory Mutual approved, these wrenches inhibit sparking and are nonmagnetic and corrosion resistant. They satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Hook Spanner Wrenches for Slots on the Side

Fit these wrenches into slots on the circumference of collars, bearings, and other machine tool components.

Hook Spanner Wrench Sets for Slots on the Side

Sets include various sizes of wrenches that fit into slots on the circumference of collars, bearings, and other machine tool components.

Pin Spanner Wrenches for Holes on the Side

Adjustable Pin Spanner Wrench
Sets for Holes on the Side

The head pivots to accommodate a range of diameters.

Pin Spanner Wrench Sets for Holes on the Side

Sets include various sizes of wrenches that are shaped to fit round holes on the circumference of collars, bearings, and other machine tool components.

Pin Spanner Wrenches for Holes on the Side

These wrenches are shaped to fit round holes on the circumference of collars, bearings, and other machine tool components.

Adjustable Pin Spanner Wrenches for Holes on the Side

The head pivots to accommodate a range of diameters.

Water Filter Spanner Wrenches

Multiple contact points grip the grooves on plastic water filter housings for loosening and removal.

Square Drive Sockets and Ratchet Wrenches

Spanner Sockets

Wheel Bearing Locknut Socket Sets

Pin Spanner Wrenches for Holes on the Face

Dual-Size Adjustable Pin SpannerWrenches for Holes on the Face

Square Drive Dual-Size Adjustable PinSpanner Wrenches for Holes on the Face

Tight-Clearance Adjustable Pin SpannerWrenches for Holes on the Face

Adjustable Pin SpannerWrenches for Holes on the Face

Multi-Size Adjustable Pin SpannerWrenches for Holes on the Face

Pin Spanner Wrenches for Holes on the Face

Hook Spanner Wrenches for Slots on the Side

Adjustable Hook Spanner WrenchSets for Slots on the Side

Corrosion-Resistant Adjustable HookSpanner Wrench Sets for Slots on the Side

Deep-Reach Adjustable Hook SpannerWrenches for Slots on the Side

Adjustable Hook SpannerWrenches for Slots on the Side

Corrosion-Resistant Adjustable HookSpanner Wrenches for Slots on the Side

Nonsparking Adjustable Hook SpannerWrenches for Slots on the Side

Hook Spanner Wrenches for Slots on the Side

Hook Spanner Wrench Sets for Slots on the Side

Pin Spanner Wrenches for Holes on the Side

Adjustable Pin Spanner WrenchSets for Holes on the Side

Pin Spanner Wrench Sets for Holes on the Side

Pin Spanner Wrenches for Holes on the Side

Adjustable Pin Spanner Wrenches for Holes on the Side

Water Filter Spanner Wrenches

Water Filter Spanner Wrenches

Dual-Size Adjustable Pin Spanner
Wrenches for Holes on the Face

Square Drive Dual-Size Adjustable Pin
Spanner Wrenches for Holes on the Face

Tight-Clearance Adjustable Pin Spanner
Wrenches for Holes on the Face

Adjustable Pin Spanner
Wrenches for Holes on the Face

Multi-Size Adjustable Pin Spanner
Wrenches for Holes on the Face

Adjustable Hook Spanner Wrench
Sets for Slots on the Side

Corrosion-Resistant Adjustable Hook
Spanner Wrench Sets for Slots on the Side

Deep-Reach Adjustable Hook Spanner
Wrenches for Slots on the Side

Adjustable Hook Spanner
Wrenches for Slots on the Side

Corrosion-Resistant Adjustable Hook
Spanner Wrenches for Slots on the Side

Nonsparking Adjustable Hook Spanner
Wrenches for Slots on the Side

Adjustable Pin Spanner Wrench
Sets for Holes on the Side