B.259-B Knurled knobs Brass boss, threaded hole

Material

Phenolic based (PF) Duroplast. Black, glossy finish.

Standard executions

• B.259-B: brass boss, threaded blind hole.

• B.259-p: zinc-plated steel threaded stud, chamfered flat end according to UNI 947 : ISO 4753 (see Technical data).