Prime Line Carriage Bolts, -20 X 1 In., A307 Grade A Zc Stl,Package Of 100. Size: 1/4 Inch-20 X 1 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.
- Size: 1/4 Inch-20 X 1 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
