Product Overview
Bright Zinc-Plated Steel Coach Bolt with an M10 thread and 100mm length in a 50/Pack.
High-performance mild steel bolt featuring a smooth, domed head and square neck, designed to provide a secure, tamper-resistant fixing in timber, metal or masonry when used with a suitable nut and washer.
Bright zinc-plated coating enhances corrosion resistance and provides a clean, professional finish suited to interior and exterior applications.
Manufactured to metric thread standards for consistent torque performance and reliable assembly with matching M-series components.
Supplied with a 10mm thread diameter for heavy-duty structural fastening, delivering high tensile strength suited to load-bearing frames and heavy joinery connections.
Features & Benefits
- Corrosion-resistant finish: Bright zinc-plated coating protects against rust and oxidation in normal atmospheric exposure.
- Square-neck design: Prevents rotation when tightened, ensuring secure locking into timber or preformed holes.
- Smooth domed head: Provides a tamper-resistant and visually tidy external face when fully seated.
- High-strength steel body: Delivers excellent tensile performance for structural fastening and general construction use.
- Consistent metric thread: Fully compatible with standard M-series nuts and washers for quick assembly.
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Heavy-duty cladding and subframe works: Provides structural integrity in load-bearing and high-torque installations.
Applications
- Timber construction: Secures timber-to-timber and timber-to-metal connections.
- Framing and joinery: Used in door frames, fencing, posts, and decking structures.
- Masonry fixing (with plug or anchor): Suitable for bolting through brick or block where threaded embedment is required.
- Heavy-duty cladding and subframe works: Provides structural integrity in load-bearing installations.
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General building and refurbishment: Universal fixing for exterior and interior structural assembly.
Installation Guidance
- Preparation: Drill a pilot hole slightly larger than the square neck to seat the bolt head flush.
- Assembly: Insert the bolt from the finished face so the domed head remains visible; secure from the rear with a matching washer and nut.
- Tightening: Hold the nut and tighten to specified torque - the square neck will self-lock to prevent rotation.
- Corrosion protection: Use in dry or moderately exposed environments; for aggressive or coastal conditions, specify hot-dip galvanised or stainless alternatives.
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Safety note: Ensure correct bolt grade and length selection to achieve required structural performance.
Compliance & Performance
- Material specification: Mild steel with bright zinc electroplated finish.
- Thread form: Metric coarse (ISO standard).
- Mechanical properties: Manufactured to conform with BS EN ISO 898-1 for bolt performance class 4.8 or higher.
- Corrosion resistance: Zinc plating provides protective barrier for standard building exposure categories.
- Temperature range: Suitable for service between -20 °C and +80 °C.
- Recyclability: Fully recyclable steel product.
- Important note: Always use matching zinc-plated nuts and washers to maintain full corrosion protection.