Heart & Industry

Home · Big Bear Bolts

5/16 X 3/4 UNF Setscrew Hex Head BZP Grade 5 / 8.8 High Tensile PK10

5/16 X 3/4 UNF Setscrew Hex Head BZP Grade 5 / 8.8 High Tensile PK10

Big Bear Bolts

£0.61

BZP Setscrews are zinc plated. Manufactured from medium carbon steel and hardened for greater strength and durability, a grade 5 bolt is the equivalent of 8.8 tensile strength distinguished by 3 radial lines and promises tensile strengths between 105,000 and 120,000 psi . They are most commonly found in automotive applications or those that require medium strength. DIN933

Big Bear Bolts's own words, read from their page.

Buy from BIG BEAR BOLTS LTDBIG BEAR BOLTS LTD is a UK retailer, not the maker. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.