20 Sets Long Square-Neck Carriage Bolts Set,Carriage Bolts Set w/Nuts & Flat Washers,Zinc-Plated,Carbon Steel Grade 4.8,Plain Finish,Fully Threaded(M8-1.25X20mm)

20 Sets Long Square-Neck Carriage Bolts Set,Carriage Bolts Set w/Nuts & Flat Washers,Zinc-Plated,Carbon Steel Grade 4.8,Plain Finish,Fully Threaded(M8-1.25X20mm)

• Bolts Size：M8x20mm；Nuts & Flat Washers Size：M8；See the size chart for more sizes.Material：Carbon Steel Zinc-Plated
• Carriage Bolts are a robust and durable fastener solution. Carriage Bolts feature a square section underneath their head, which makes them self-locking when used within a square hole.
• Precision forged, acid and alkali resistant, corrosion resistant and resistant to oxidation.The thread is smooth and flat, the squat is evenly stressed, and the screw teeth are stronger.
• Carriage bolts are designed to fasten a wooden face to either wood or metal.Flat, smooth head eliminates the need for a washer.
• Due to the head there is no groove type that can be used with a power assisting tool. It can also be hidden during actual use to prevent disassembly.