M12 x 180MM Cup Square Bolt ( 1 Piece )

The M12 x 180MM Cup Square Bolt (1 Piece) by Owlett Jaton (Hexstone Limited) is a heavy-duty, bright zinc plated mild steel coach bolt engineered for reliable structural fastening in timber and construction applications. Also known as a carriage bolt or cup square hex bolt, it is a trusted choice for UK trade professionals and DIY builders who need a robust, corrosion-resistant fixing in a long 180mm length.

Key Features and Specifications

• Thread Diameter: M12 (12mm)
• Length: 180mm
• Head Type: Domed cup head with square neck shank
• Material: Mild steel
• Finish: Bright zinc plated (BZP) for corrosion resistance
• Thread Pitch: 1.75mm (metric coarse)
• Standard: DIN 603
• Quantity: Sold individually (1 piece)
• Brand: Owlett Jaton / Unifix (Hexstone Limited)

Applications

• Timber-to-timber structural jointing in house building and extensions
• Timber joist and beam connections in floor and roof construction
• Garden decking, fencing, and gate post fixing
• Furniture making, joinery, and workshop fabrication
• Fixing ironmongery and metal brackets to timber
• Playground equipment, pergolas, and outdoor structures

Why Choose This Product

Supplied by Owlett Jaton (Hexstone Limited) — one of the UK’s largest wholesale fastener distributors — this M12 x 180mm cup square bolt delivers consistent quality to DIN 603 standard. The square neck beneath the domed head bites into timber to prevent rotation during tightening, eliminating the need for a second tool. The bright zinc plated finish provides reliable protection against rust in both indoor and outdoor environments. Sold as a single piece, it suits both small DIY repairs and bulk trade orders alike.

Delivery in and Around London

We deliver this M12 x 180MM Cup Square Bolt across London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply trade customers throughout the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities are welcome — whether you need a single bolt or a bulk pallet, we can accommodate your project requirements with fast, reliable despatch.