Description
UNC High Tensile Imperial Steel Large Head Flange Bolt Screws 1/4" 5/16" 3/8"
Thread - UNC (Imperial coarse thread)
Grade - Grade 5 High Tensile Steel (8.8 Metric equivalent)
Finish - Zinc Plated Steel
Sizes listed are thread size x length measured from under the head.
1/4" is 20 threads per inch.
5/16" is 18 threads per inch
3/8" is 16 threads per inch
All sizes are serrated under the head apart from the folowing sizes - 3/8 x 5/8" & 3/8 x 3/4" (none serrated).
Simply choose your size and pack quantity from the menus available.
FREE 1st class postage to theuk
World wide delivery available on request.
Thread - UNC (Imperial coarse thread)
Grade - Grade 5 High Tensile Steel (8.8 Metric equivalent)
Finish - Zinc Plated Steel
Sizes listed are thread size x length measured from under the head.
1/4" is 20 threads per inch.
5/16" is 18 threads per inch
3/8" is 16 threads per inch
All sizes are serrated under the head apart from the folowing sizes - 3/8 x 5/8" & 3/8 x 3/4" (none serrated).
Simply choose your size and pack quantity from the menus available.
FREE 1st class postage to theuk
World wide delivery available on request.
Additional Information
We are dedicated to ensuring the highest possible quality service to our customers.
Click to expand the tabs below to read more about our policies.
