Shoulder Washer Color White For Screw Size 5/16 in Inside Diameter 0.32 in Shoulder Outside Diameter 0.62 in Shoulder Height 0.063 in Sleeve Outside Diameter 0.36 in Overall Height 0.313 in Material Nylon Material Grade/Class 6/6 System of Measurement Inch Finish Plain Industry Standards UL94 V-2 Maximum Temperature 185 Degrees F Minimum Temperature -40 Degrees F Pack Size Small Pack Resistance Properties Abrasion Resistant Corrosion Resistant Sleeve Height 0.25 in