

3/8 (24) UNF x 4 1/2 Inch Hex Bolt, A2 Stainless Steel (ASME B18.2.1)
3/8 UNF Bolt
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 in A2 stainless steel for high corrosion resistance. This makes them a versatile choice for both internal and external applications.
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 for durability and strength, these corrosion resistant stainless-steel hex bolts are widely used across many industries by DIY enthusiasts and professional alike.
3/8 UNF bolt specification
- Thread diameter (TD): 3/8 (24) UNF
- Thread per inch (TPI): 24
- Length (L): 4 1/2 inch
- Thread length (TL): 1.250 inch max
- Head width (HW): 0.562 inch max
- Head height (HH): 0.243 inch max
- Material: A2 stainless steel
Versatile, widely used, and part of a growing range of hex bolts held in stock at competitive prices.
Quantities start from just one to as many as you require to get the job done.
Original: $1.74
-70%$1.74
$0.52Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
3/8 UNF Bolt
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 in A2 stainless steel for high corrosion resistance. This makes them a versatile choice for both internal and external applications.
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 for durability and strength, these corrosion resistant stainless-steel hex bolts are widely used across many industries by DIY enthusiasts and professional alike.
3/8 UNF bolt specification
- Thread diameter (TD): 3/8 (24) UNF
- Thread per inch (TPI): 24
- Length (L): 4 1/2 inch
- Thread length (TL): 1.250 inch max
- Head width (HW): 0.562 inch max
- Head height (HH): 0.243 inch max
- Material: A2 stainless steel
Versatile, widely used, and part of a growing range of hex bolts held in stock at competitive prices.
Quantities start from just one to as many as you require to get the job done.
























