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Cup Hd Bolt M12 x 40 316 x 1
Cup Head Bolt M12 × 40 – 316 Stainless Steel
This M12 × 40 Cup Head Bolt is precision-engineered from marine-grade 316 stainless steel, providing outstanding strength, corrosion resistance, and a polished professional finish. The domed cup head with a square neck prevents rotation during tightening, ensuring a secure, flush fit — ideal for timber construction, marine fittings, decking, fencing, and structural applications.
The metric coarse M12 thread offers easy installation and dependable fastening, while the 316 stainless steel composition guarantees superior resistance to rust, pitting, and saltwater corrosion — making it ideal for coastal, marine, and outdoor environments.
Key Features
Size: M12 × 40mm
Thread type: Metric coarse
Material: 316 marine-grade stainless steel
Domed cup head with square neck for anti-rotation grip
Excellent corrosion, salt, and weather resistance
Smooth polished finish for a professional appearance
Ideal for timber joints, marine fittings, decking, and structural use
A premium 316 stainless steel cup head bolt designed for strength, reliability, and long-term corrosion protection — perfect for marine, outdoor, and architectural construction projects.
Details
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Diameter:M12
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Length:40mm
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Thread Pitch:1.75mm