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Cup Hd Bolt 3\8UNC x 1.1\4 304 x 1

Stock Code:
3160806
Price:
$1.82

Cup Head Bolt ⅜" UNC × 1¼" – 304 Stainless Steel

This ⅜" UNC × 1¼" Cup Head Bolt is made from high-quality 304 stainless steel, offering excellent strength, corrosion resistance, and a polished finish. The domed cup head with a square neck design prevents rotation during tightening, providing a secure, flush fit — ideal for timber construction, marine fittings, fencing, decking, and general engineering applications.

The Unified National Coarse (UNC) thread ensures strong engagement and reliable fastening, while the 304-grade stainless steel composition provides long-term resistance to rust, pitting, and staining. This makes it suitable for indoor, outdoor, and coastal environments where durability and a professional appearance are essential.

Key Features

  • Size: ⅜" UNC × 1¼" (9.5mm diameter × 32mm 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

  • Smooth, polished finish for a clean, professional look

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

A reliable 304 stainless steel cup head bolt designed for strength, corrosion resistance, and a refined finish — perfect for marine, architectural, and general-purpose fastening.

Details

  • Diameter:
    3\8UNC
  • Length:
    1.1\4
  • Thread Pitch:
    16 TPI
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