Standard DIN, ASTM/ANSI JIS EN ISO, AS, GBGrad oțel: 4/6/10/12 SAE: Gr.2, 5, 8;Finisaj Zinc (galben, alb, albastru, negru), galvanizare prin imersie (HDG), oxid negru, geometrie, dacroment, anodizare, nichelat, zinc-nichelat
Piuliță hexagonală
Material: oțel carbon, oțel inoxidabil