1/4" UNF Hex Bolt Zinc (Partially Threaded)

1/4" UNF Hex Bolt Zinc (Partially Threaded)

UNF bolt with a hex head allowing you to apply the required torque easily with a range of conventional tools.

A part threaded bolt with a ‘unified fine thread’ (UNF) manufactured from grade 5 (8.8) steel with a bright zinc plating (BZP) which offers a mid-level resistance to corrosion.

The unthreaded shank below the hex head adds overall strength making this hex head bolt more resistant to vibration and shear forces when installed into the correctly drilled hole.

Engineered to get the job done and widely used across many industries by DIY enthusiasts and professional alike.

1/4 UNF bolt specification

• Thread diameter (TD): 1/4 (28) UNF
  
• Thread per inch (TPI): 28
  
• Thread length (TL): 1.000 inch max
  
• Head width (HW): 0.438 inch max
  
• Head height (HH): 0.163 inch max
  
• Material: Grade 5 (8.8) steel
  
• Finish: BZP bright zinc plated