Shoulder Washer Color White For Screw Size 1/4 in Inside Diameter 0.26 in Shoulder Outside Diameter 0.513 in Shoulder Height 0.063 in Sleeve Outside Diameter 0.313 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