Spacer Spacer Type Round For Screw Size 1/4 in Overall Length 1 1/2 in Inside Diameter 0.252 in Outside Diameter 0.5 in Retaining Rib Diameter Not Applicable Material Aluminum Finish Plain Pack Size Small Pack System of Measurement Inch Hex Width Not Applicable Hex Width Tolerance Not Applicable Inside Diameter Tolerance +/-0.010 in Outside Diameter Tolerance +/-0.005 in Overall Length Tolerance +/-0.005 in Resistance Properties Corrosion Resistant Package Quantity 10