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Cup Hd Bolt 3\8UNC x 3 304 x 1
Cup Head Bolt â " UNC × 3" – 304 Stainless Steel
This â " UNC × 3" Cup Head Bolt is precision-manufactured from premium 304 stainless steel, providing exceptional strength, corrosion resistance, and a smooth polished finish. Designed with a domed cup head and square neck, it prevents rotation during tightening and delivers a secure, flush fit — ideal for timber construction, marine fittings, fencing, decking, and general engineering applications.
The Unified National Coarse (UNC) thread ensures reliable fastening strength and easy installation, while the 304 stainless steel composition offers superior resistance to rust, pitting, and staining. Perfect for indoor, outdoor, and coastal environments, this bolt is both functional and visually appealing.
Key Features
Size: â " UNC × 3" (9.5mm diameter × 75mm length)
Thread type: Unified National Coarse (UNC)
Material: 304 stainless steel
Domed cup head with square neck for anti-rotation hold
Excellent corrosion and weather resistance
Smooth, polished finish for a professional look
Ideal for timber joints, marine fittings, decking, and construction projects
A durable and corrosion-resistant 304 stainless steel cup head bolt designed for secure fastening, strength, and a clean finish — perfect for marine, outdoor, and general construction applications.
Details
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Diameter:3\8UNC
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Length:3
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Thread Pitch:16 TPI