Mild Steel Nut & Bolt

screws, set screws, aerospace bolts and nuts, and connecting rod .... on the bearing surface of a boltor nut. YIELD STRENGTH. Yield strength is defined as the tension applied stress at which the fastener experiences a specified amount of permanent ..... Carbon steel bolts and screws without markings should be viewed. ASTM A307 is the standard specification for carbon steel bolts, studs, and threaded rods of 60000 PSI tensile strength in sizes from ¼ inch to 4 inches in ... Bolt. Nut. Washer. Grade A - 1/4 inch to 11/2 inches. A563A Hex. F844. Grade A - 11/2 inches to 4 inches. A563A Heavy hex. F844. Grade B - 1/4 inch to 4 inches.