5/16"-18x1 3/8",(PT) HEX CAP SCREWS GRADE 5 COARSE MED. CARBON ZINC CR+3 USA
              
            
          Specifications
- Size description: 5/16"-18
 - Piece weight: 0.03640
 - Diameter: 5/16"
 - Length: 1 3/8"
 - Thread: COARSE
 - Plating: ZINC CR+3
 - Part Number: 457081
 - Material: GRADE 5 STEEL
 - Finish: ZINC CR+3