3/8"-16 x 4 (50 Pack) Galvanized Carriage Bolt Kit Grade 307A, Includes: USS Flat Washers (50 pcs) and Hex Nuts (50 pcs), Hot Dip Galvanized for Exterior Use by Fastener Depot

Carriage bolts are designed to fasten a wooden face to either wood or metal. Push into a hole the same size as the shank and then hammered in the rest of the way, where the square shoulder locks it firmly in place eliminating the need for a washer. Used whenever a smooth finish surface is needed so that nothing becomes snagged on the fastener. Galvanized finish allows for greater corrosion resistance.

• Coarse Thread
• Superior Corrosion Resistance
• Hot Dipped Galvanized Finish
• Grade A
• Full Thread
• Minimum Tensile Strength: 60,000 PSI
• Coating Thickness: for sizes 3/8“ & under : 0.0017” (43 microns) | for sizes over 3/8“ : 0.0020” (50 microns)
• Specifications Met: ASTM F2329/F2329M or ASTM A153/A153M
• RoHS Compliant
• Kit Includes Nuts and Washers