Confezione da 20 Manopole a Stella 1/4-20, Testa Esagonale Filettata Femmina da 1/4 di Pollice, Nero
20pcs 1/4-20 Female Threaded Hexagon Head Thru Knob. Well Made: Each 1/4-20 knob has a brass insert that molded in a plastic knob. The thru knobs have enough threads that are intended to thread on a bolt to clamp them together.