No. 12 Washers | McMaster-Carr

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System of Measurement

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OD

Material

Thickness

Screw Size

Washer Type

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Color

Length

Overall Height

Hardness

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Specifications Met

Washer Designation

Fastener Strength Grade/Class

Performance

Width

USMCA Qualifying

REACH Compliance

Military Specification

ASME Designation

Maximum Temperature

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340 Products

Fastening and Joining

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Lock Washers

Resist vibration to prevent fasteners from loosening

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Insulating Washers

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Shims

Level, align, and adjust spacing on fasteners, shafts, and machine components

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

Magnets

Attract or repel metal objects to hang, secure, or position them

Material Handling

Tie-Down Washers

Tie-Down Washers

Angled sides align and hold tie-down straps

Communication

Tag Washers

Bolt onto surfaces to mount tag rings and ties

Building and Machinery Hardware

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

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