steel 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.
steel 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.
| Material | Steel, stainless steel |
| For Screw Size | No. 12, No. 14, 1/4", No. 15 |
| ID | 8mm |
| Width | 70mm |
| Thickness | 1.0mm |
| Washer Type | For Rigid Insulation |
| System of Measurement | mm |
| Features |
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| application | For Composite Board, Gypsum Board, Extrusion Board, Foam Slate, Rock Wool And So On. |


