FORMAT Pull-stud JISB6339 BT40 45deg. int. cooling

Retention bolt, ISO 7388-2 (JIS B 6339 MAS/BT), with through-hole

Design: Hardened in operation, with a hardness of 58 ± 2 HRC, hardness penetration depth 0.5-0.8. Thread is soft-rolled to DIN, ground parallel and burnished.

Application: For tools with taper shank ISO 7388-1 (DIN 69871) and ISO 7388-2 (JIS B 6339 MAS/BT) in machining centres and CNC machines.