1/4 in. x 1-1/2 in. x 2 in. Plastic Raised Rib Shim, Black (250 Per Box) | PS14-4X6

Plastic raised rib shims are ideal for use where heavy loads are set on top of the load-bearing shim, often permanently.

• Typically withstanding ten tons of compressed force, lightweight plastic U-shaped shims are designed to fit around bolts and anchors.
• Often used for aligning windows and curtain walls.
• Rectanglular 4x6 Shape
• Offered in three sizes and color-coded for thicknesses.