Hardness RB 56-68Shims refer to a broad class of specialty flat washers that are used for positioning and spacingWhile shims look like flat washers they are different in that shims are typically made from non-ferrous materials, using more precise materials and production techniquesFinish: Plain Item: Shim Stock Length: 100 Inch Material: Full Hard Cold Rolled CDA Alloy Brass Measurement: Inch Origin: Imported Shim Length Maximum: 100.250 Inch Shim Length Minimum: 99.750 Inch Thickness: 0.0010 Inch Thickness Maximum: 0.0011 Inch Thickness Minimum: 0.0010 Inch Type: Roll Width: 6 Inch Width Maximum: 6.005 Inch Width Minimum: 5.995 Inch 
