June Scrap Surcharge $.1183/lb Additional Alloy surcharges for June 4037- will be $.0281/lb - 4140 will be $.0390/lb - 8640 will be $.0345/lb

Pan Head and Round Head Bolts

Pan Head bolts are slightly rounded head with short vertical sides. The round head bolts are similar to carriage bolts, with the exception that there is no square neck under the head. Some round heads may have a knurl under the head. Special dimensions can be manufactured to meet your needs in inch or metric sizes.

Size Ranges
Inches Metric
Diameter Range 5/16" – 1" M8 - M27
Length Range 3/8" – 11 1/2"
Standard Materials
Carbon Steels SAE 1008, 1010, 1018, 1038, 1335, 1541, and 10B21
Alloy Steels SAE 4037, 4140, 5140, 8620, 8637, and 8740
Stainless Steels 302, 304, 316, 300 & 400 Series
Options Zinc, zinc yellow, phos & oil, black oxide, cadmium, and organics. Other coatings on request.
Standards Auto Bolt manufactures certified quality products using industry standards such as ASTM, ASME, ANSI, SAE, ISO, and DIN.
Order Quantity In many instances we are able to manufacture 2,500 pieces, depending on the diameter and geometry of the part.