Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.

SAE washers generally have a smaller ID and OD than USS washers.

Also known as Type B washers, these distribute your fastener's load over a larger surface area than other washers to minimize damage to soft materials.

Also known as backup washers, these are for use with blind rivets for extra support when fastening into soft material.

Clipped to fit where standard washers can't, these won't rotate when you position the flat edge against a flat surface.

Square washers fit into slots and channels and have flat sides to keep them from rotating.

A slot in the side allows you to install and remove these washers without completely disassembling your joint.

Cover oversized holes and the ends of tubes and pipe with these cup-shaped washers.

Teeth on the outside edge of these metric washers bite into the screw head and joint for a tight grip.

To keep 90° countersunk screws from loosening in vibration applications, the teeth on these washers bite further into the screw head and joint than standard external-tooth lock washers for a more secure hold.

The teeth on these washers firmly grip heads of 82° flat head countersunk screws.

Internal teeth dig into the screw head while the smooth outside edge won't snag objects. Use with metric fasteners that have small heads, such as fillister and cheese head screws.

The combination of internal and external teeth boosts gripping power to maintain a tight hold and provide more vibration resistance than other tooth lock washers. Use with fasteners that have heads large enough to make contact with the external teeth, such as pan, button, and binding head screws.

These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws.

Bend one tab against the side of the mounting surface and the other tab against the flats on a bolt or nut to prevent both the fastener and washer from turning and loosening in high-vibration applications, such as a motor mount.

Able to withstand pressure greater than 7,000 psi, these one-piece bonded washers create the tightest seals.

Brass makes these spacers electrically conductive and the zinc-plated finish adds corrosion resistance.

The wide flange provides better load distribution than standard external push rings and can be used to cover oversized holes. Also known as thread cutting nuts.

SAE washers generally have a smaller ID and OD than USS washers.

USS washers generally have a larger ID and OD than SAE washers.

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

With flexible teeth that slide smoothly over threads of any pitch, these push nuts can be used alone for light-duty applications or as a jam nut.

Hex speed nuts can be gripped with a wrench for ease of removal.

Press these wing head nuts into a closed-end hole or thick panel in applications where the back of the panel is inaccessible. A quarter-turn locks and releases access panels, doors, and covers.

These rounded head screws have a nut that clips onto the edge of a thin panel, allowing you to mount the screw near edges. A quarter-turn locks and releases access panels, doors, and covers.

Press these wing head nuts into the backside of a panel in applications where you have access to both sides of the panel. A quarter-turn locks and releases access panels, doors, and covers.

Rivet these wing head nuts into thin panels for a flush fit. They can be mounted without space between panels. A quarter-turn locks and releases access panels, doors, and covers.

Protect bolts from sideways (shear) pressure.

Add hardware to strut channel without having to hold the washer in place or reach inside the channel.

Notches on these washers grip the channel to keep them in place.