Split Lock Washer, Lock Washer Type Split Lock, Finish Zinc Plated, Material Spring Steel, For Screw Size 3/8 in, Inside Diameter 0.385 in, Outside Diameter 0.68 in, Maximum Thickness 0.094 in, Minimum Thickness 0.094 in, Dimensional Standards ASME B18.21.1, Material Grade/Class Grade 2, Pack Size Small Pack, Rockwell Hardness C38, System of Measurement Inch, Thickness Tolerance 0.094 in to 0.141 in, Package Quantity 100