Coach Bolt and Nut BZP M8 x 50mm (Pack of 55)

Summary

A bright zinc plated M8 x 50mm coach bolt supplied complete with hex nut, sold in a trade pack of 55. Also known as a carriage bolt or cup square hex bolt, this fastener is designed for timber-to-timber construction and low-load structural joinery applications. The BZP finish provides reliable corrosion resistance for both internal and sheltered external use.

Features

• Round domed head with integral square shank section that bites into timber, preventing rotation during tightening.
• Bright zinc plated finish offers corrosion protection suitable for internal and covered external applications.
• Fully threaded along the shank length (at 50mm, within the fully threaded range up to 100mm).
• Conforms to DIN 603 (bolt) and DIN 934 (nut) standards for consistent dimensional accuracy.
• Mild steel Grade 4.8 construction allows flex with timber movement, reducing the risk of shear failure.
• Ideal for timber frame construction, garden structures, pergolas, fencing, and joinery.
• Supplied with matching BZP hex nut - no need for a separate nut purchase.
• Convenient trade pack of 55 bolts with nuts, suited to site and workshop use.

Specifications

• Thread Diameter: M8 (1.25mm pitch)
• Length: 50mm
• Head Type: Round dome / cup square (carriage bolt)
• Material: Mild steel, Grade 4.8
• Finish: Bright zinc plated (BZP)
• Standard: DIN 603 / DIN 934
• Pack Quantity: 55

What's Included

• 55 x M8 x 50mm BZP coach bolts
• 55 x BZP M8 hex nuts