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

Stock Code:
3160814
Price:
$1.46

Cup Head Bolt 5⁄16" UNC × 1" – 304 Stainless Steel

This 5⁄16" UNC × 1" Cup Head Bolt is made from premium 304 stainless steel, providing excellent corrosion resistance, durability, and a smooth polished finish. Designed with a domed cup head and square neck, it prevents rotation during tightening, ensuring a secure and flush fit — ideal for timber construction, marine fittings, fencing, decking, and general fabrication projects.

The Unified National Coarse (UNC) thread offers strong engagement and easy installation, while the 304-grade stainless steel ensures lasting protection against rust, pitting, and staining. This bolt is perfectly suited for indoor, outdoor, and semi-corrosive environments, providing strength and longevity with a professional appearance.

Key Features

  • Size: 5⁄16" UNC × 1" (7.9mm diameter × 25mm 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 clean appearance

  • Ideal for timber joints, marine fittings, decking, and general construction

A durable and corrosion-resistant 304 stainless steel cup head bolt designed for strength, precision, and a professional finish — perfect for marine, construction, and outdoor applications.

Details

  • Diameter:
    5\16UNC
  • Length:
    1
  • Thread Pitch:
    18 TPI
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