Product Overview

Prime LineCarriage Bolts, -18 X 3 In., A307 Grade A Zc Stl, Package Of 50. Size: 5/16 Inch-18 X 3 Inch. Features A Smooth Rounded Head As Opposed To A Standard Hex Head. Square Shoulder Allows For Nut To Be Tightened Or Loosened. Often Used In Cases Where A Protruding Bolt Head Could Cause Injury. Nuts And Washers Not Included, Ensure Washers And Nuts Are Same Diameter. Thread Type: Coarse, Thread Class: Unc-2a, Point Style: Blunt. Specification(S) Met: Asme B18.5 & Astm A307a. Mfg #9063058

• Size: 5/16 Inch-18 X 3 Inch
• Features A Smooth Rounded Head As Opposed To A Standard Hex Head
• Square Shoulder Allows For Nut To Be Tightened Or Loosened
• Often Used In Cases Where A Protruding Bolt Head Could Cause Injury