Rectangle Self-Locking Washers

Self-Locking Washers are used in conjunction with weld pins, insulation anchors and lacing anchors to fasten insulation in place. Choose from a variety of metals, sizes and types from our inventory.


Sound Acoustic Solutions stocks self-locking washer that is manufactured primarily of Mild Steel and available in only one size.  These insulation washers mount on many types of insulation fasteners for holding insulation material in place. The gauge of the pin, or diameter, should match the fastener it is being affixed.

Self-Locking Washers Rectangle – Beveled:

  • Diameter: 1-1/8 inch x 1-1/4 inch
  • Material: Mild Steel
  • Plating: Galvanized
  • Edge Beveled

Weight N/A

Dimensions N/A

Type: Mild Steel, Stainless Steel

Diameter: 1 inch, 1½ inches, 1 inches x 1¼ inches, 2½ inches

Quantity: Bag of 200, Bag of 1000