Carr Lane Washers
Spherical washers
Spherical Washers, also referred to as Equalizing Washers, are robust two-piece washers designed to adjust when a stud and clamping surface are not perfectly perpendicular. The upper washer features a convex spherical shape, while the lower washer has a corresponding concave spherical design. These washers are available in steel for stud sizes ranging from 1/4 to 1-1/2" (M6 to M36 in metric) and in stainless steel for stud sizes from #10 to 3/4" (M5 to M18 in metric).
Knurled face
These thick, heavy-duty washers are offered in steel for stud sizes between 1/4 to 1" (M6 to M22 in metric) and in stainless steel for stud sizes ranging from #10 to 3/4" (M5 to M18 in metric).
Flat Washers
Flat washers have a serrated surface designed to stop two parts from slipping relative to one another. These are available to accommodate stud sizes #10 and 1/4".