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Cup Hd Bolt 1\4UNC x 1.1\2 304x 1
Cup Head Bolt ¼" UNC × 1½" – 304 Stainless Steel
This ¼" UNC × 1½" Cup Head Bolt is precision-manufactured from premium 304 stainless steel, providing excellent strength, corrosion resistance, and a smooth polished appearance. Featuring a domed cup head with a square neck, it prevents rotation during tightening, ensuring a secure and flush fit — ideal for timber construction, furniture assembly, fencing, marine fittings, and general-purpose fastening.
The Unified National Coarse (UNC) thread ensures strong engagement and easy installation, while the 304-grade stainless steel offers reliable resistance to rust, pitting, and staining. This makes it suitable for indoor and outdoor environments, including coastal and damp locations.
Key Features
Size: ¼" UNC × 1½" (6.35mm diameter × 38mm length)
Thread type: Unified National Coarse (UNC)
Material: 304 stainless steel
Domed cup head with square neck for anti-rotation
Excellent corrosion and weather resistance
Polished finish for a neat, professional appearance
Ideal for timber joints, fencing, marine use, and light construction
A durable and corrosion-resistant 304 stainless steel cup head bolt designed for reliable fastening and a clean finish — perfect for marine, structural, and general-purpose applications.
Details
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Diameter:1\4UNC
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Length:1.1\2
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Thread Pitch:20 TPI