30.99 22. 1. 2026.
ISO
ISO/TC 20/SC 4
Међународни стандард
This standard describes the dimensions of hexagonal head bolts, with large tolerance normal shank and UNJF threads, in metallic material (alloy steel, CRES and titanium alloy, etc.), coated or uncoated. It is applicable to be used as a test bolt for torque-tension tests of self-locking nuts and threaded collars to determine locking torque, breakaway torque and preload.
ПРОЈЕКАТ
ISO/CD 25963
30.99
Нацрт комисије стандарда одобрава се за јавну расправу
22. 1. 2026.