Round Standoff Female Aluminum Finish Clear Anodized US28 Screw Size 5/16-18 Outside Dia 3/4 In Length 1 1/2 In Thread Depth 1/2 In Each End Outside Dia Tolerance +0.000/-0.025 In Length Tolerance +/-0.010 In Tensile Strength 55 000 PSI Color Silver Temp Range Not Rated F Package Quantity 2