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Cup Hd Bolt 3\8UNC x 2.1\2 304 x 1

Stock Code:
3160808
Price:
$5.56

Cup Head Bolt ⅜" UNC × 2½" – 304 Stainless Steel

This ⅜" UNC × 2½" Cup Head Bolt is made from high-quality 304 stainless steel, offering excellent strength, corrosion resistance, and a clean polished finish. Designed with a domed cup head and square neck, it prevents rotation during tightening and ensures a secure, flush fit — ideal for timber construction, marine fittings, fencing, decking, and general engineering applications.

The Unified National Coarse (UNC) thread provides reliable fastening and easy installation, while the 304 stainless steel composition guarantees long-term resistance to rust, pitting, and staining. Perfect for indoor, outdoor, and coastal environments, this bolt combines performance and appearance in one dependable design.

Key Features

  • Size: ⅜" UNC × 2½" (9.5mm diameter × 64mm 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

  • Polished finish for a professional appearance

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

A strong, corrosion-resistant 304 stainless steel cup head bolt offering precision, durability, and a clean finish — perfect for marine, outdoor, and construction applications.

Details

  • Diameter:
    3\8UNC
  • Length:
    2.1\2
  • Thread Pitch:
    16 TPI
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