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Cup Hd Bolt 5\16UNC x 1.1\4 304 x 1

Stock Code:
3160816
Price:
$1.76

Cup Head Bolt 5⁄16" UNC × 1¼" – 304 Stainless Steel

This 5⁄16" UNC × 1¼" Cup Head Bolt is manufactured from high-quality 304 stainless steel, delivering excellent strength, corrosion resistance, and a smooth polished finish. Featuring a domed cup head with a square neck, it locks securely in place and prevents rotation during tightening — ideal for timber construction, fencing, marine fittings, decking, and general fabrication work.

The Unified National Coarse (UNC) thread provides reliable fastening and easy installation, while the 304-grade stainless steel ensures long-lasting protection against rust, pitting, and staining. Perfect for both indoor and outdoor applications, this bolt maintains strength and a clean, professional look even in harsh environments.

Key Features

  • Size: 5⁄16" UNC × 1¼" (7.9mm diameter × 32mm length)

  • Thread type: Unified National Coarse (UNC)

  • Material: 304 stainless steel

  • Domed cup head with square neck for anti-rotation grip

  • Excellent corrosion and weather resistance

  • Polished finish for neat, professional appearance

  • Ideal for timber joints, marine fittings, fencing, and construction

A durable 304 stainless steel cup head bolt offering reliable strength, corrosion protection, and a clean finish — perfect for marine, outdoor, and general construction applications.

Details

  • Diameter:
    5\16UNC
  • Length:
    1.1\4
  • Thread Pitch:
    18 TPI
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