Black 1-1/2" Square Lock Washers

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Price: $36.50
Unit Of Measure:
Per Bag of 100 or Box of 1,000

Black Square Washers are locking washers which hold insulation onto both perforated and self-sticking insulation pins.  Black Washers will blend in with black insulation facings or fabrics and reflect less light than standard metal washers.  Black Washers are commonly used to hold black fiberglass board in place on walls/ceilings that will be left exposed.  The washer is a 1-1/2" square washer made of galvanized steel.  During the coating process the finished side of the lock washer is cleaned and then powder coated flat black.


  • Any Black or Dark faced insulation board or wrap including:
  • Owens Corning Select Sound Black Acoustic Board/Blanket
  • Knauf Ecose Black Acoustic Board
  • Johns Manville Linacoustic Board
  • Armstrong Black Acoustic Tiles
  • Black Fabric Wrapped Wall Panels


Width: 1-1/2"
Height: 1-1/2"
Color: Flat Black (Finished side only)
Fits Pin Gauge:  12 ga (Washers fit all pins on our site)


Sold in Bags of 100 washers
Sold in Boxes of 1,000 washers

You may also be interested in Self-Locking Washers (Galvanized)

Unit Of Measure:
Per Bag of 100 or Box of 1,000