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Cup Hd Bolt 1\2UNC x 4 304 x 1

Stock Code:
3160792
Price:
$16.62

Cup Head Bolt ½" UNC × 4" – 304 Stainless Steel

This ½" UNC × 4" Cup Head Bolt is precision-manufactured from premium 304 stainless steel, providing excellent strength, corrosion resistance, and a clean polished finish. Featuring a domed cup head with a square neck, it prevents rotation during tightening and ensures a smooth, secure fit — ideal for timber construction, marine projects, fencing, decking, and general engineering applications.

The Unified National Coarse (UNC) thread offers strong engagement and easy assembly, while the 304 stainless steel provides long-term resistance to rust, pitting, and staining, even in outdoor or damp environments. This makes it a reliable choice for both structural and decorative fastening tasks.

Key Features

  • Size: ½" UNC × 4" (12.7mm diameter × 100mm length)

  • Thread type: Unified National Coarse (UNC)

  • Material: 304 stainless steel

  • Domed cup head with square neck for anti-rotation

  • Excellent corrosion, moisture, and weather resistance

  • Provides a flush, smooth finish once installed

  • Ideal for timber joints, marine fittings, decks, and outdoor structures

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

Details

  • Diameter:
    1\2UNC
  • Length:
    4
  • Thread Pitch:
    13 TPI
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