Washer Type Washer Type |
---|
![]() | Square-Neck Bolt Lock |
![]() | For Foam Insulation |
![]() | For Rigid Insulation |
Finish Finish |
---|
|
Thickness Thickness |
---|
|
Hardness Hardness |
---|
|
More
Designed for use with square-neck bolts such as carriage bolts, these washers have teeth that dig into wood and other soft material to prevent rotation. They’re zinc-plated steel for corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
These washers have prongs that pierce foam insulation so they stay in place. Use them with self-sinking flat head (bugle head) screws. They are galvanized steel for corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Prong Lg. | Pkg. Qty. | Pkg. | |
Galvanized Steel | |||||||
---|---|---|---|---|---|---|---|
No. 8 | 0.175" | 1.250" | 0.020"-0.024" | 5/16" | 50 | 000000000 | 00000 |
Plastic washers resist moisture, chemicals, and friction and are good electrical insulators. These have a large surface that distributes holding pressure to reduce the likelihood of crushing insulation.
Washers with prongs enable pre-spotting into insulation for easy on-the-wall fastener assembly.
Washers with an insulating seal have a stiff center with a flexible perimeter that creates a barrier against air and moisture penetration when fastened to rigid insulation.
For technical drawings and 3-D models, click on a part number.