Packing Nut Wrenches | McMaster-Carr

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Rings, Flanges, and Collars

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111 Products

Wide-Opening Tight-Clearance Adjustable Wrenches

Wide-Opening Tight-Clearance
Adjustable Wrenches

The jaws on these wrenches are shaped to turn slip nuts, jam nuts, and large hex nuts.

Pin Spanner Wrenches for Holes on the Face

Adjustable Pin Spanner
Wrenches for Holes on the Face

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

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.

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

Use your ratchet wrench as a handle.

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.

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.

Pin Spanner Wrenches for Holes on the Side

Adjustable Pin Spanner
Wrenches for Holes on the Side

The head pivots to accommodate a range of diameters.

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 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.

Hook Spanner Wrenches for Slots on the Side

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

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

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

Adjustable Hook Spanner
Wrenches for Slots on the Side

The head pivots to accommodate a range of diameters.

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.

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 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.

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.

Water Filter Spanner Wrenches

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

Wide-Opening Tight-Clearance Adjustable Wrenches

Wide-Opening Tight-ClearanceAdjustable Wrenches

Pin Spanner Wrenches for Holes on the Face

Adjustable Pin SpannerWrenches for Holes on the Face

Tight-Clearance Adjustable Pin SpannerWrenches for Holes on the Face

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

Dual-Size 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

Pin Spanner Wrenches for Holes on the Side

Adjustable Pin SpannerWrenches for Holes 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

Hook Spanner Wrenches for Slots on the Side

Hook Spanner Wrenches for Slots on the Side

Corrosion-Resistant Adjustable HookSpanner Wrenches for Slots on the Side

Adjustable Hook SpannerWrenches for Slots on the Side

Deep-Reach Adjustable Hook SpannerWrenches for Slots on the Side

Nonsparking Adjustable Hook SpannerWrenches for Slots on the Side

Hook Spanner Wrench Sets 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

Water Filter Spanner Wrenches

Water Filter Spanner Wrenches

Wide-Opening Tight-Clearance
Adjustable Wrenches

Adjustable Pin Spanner
Wrenches for Holes on the Face

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

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

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

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

Adjustable Pin Spanner
Wrenches for Holes on the Side

Adjustable Pin Spanner Wrench
Sets for Holes on the Side

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

Adjustable Hook Spanner
Wrenches for Slots on the Side

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

Nonsparking Adjustable 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