5/16-24 UNF x 1-1/2″ Imperial Stainless Steel Hex Bolts, 20 Piece LotCondition:* New Surplus Stock, Re-Bagged From Larger Bulk Packaging. As Pictured.Additional Notes:* Quantity: 20 Piece Lot* Thread Size: 5/16-24 UNF* Length (L): 1-1/2 inch* Socket Size (J): 0.5 inch (Tolerance: +0/-0.016 inch)* Head Length: 0.235 inch (Tolerance: +0/-0.04 inch)* Pitch: 24 TPI* Thread Length (E): 1.125 inch (Tolerance: +0/-0.25mm)UNKRP22342