bolt

    5) Socket specifications: 6 x 6, 8 x 8, 10 x 10, 12 x 12

          k) Dacrotized

           j) Electrophoresis black

           i) Plating chrome

          h) Plating nicke

          g) Black zinc

           f) Gold brass

          e) Black phosphor

          d) Grey phosphor

          c) Blacking

          b) Yellow zinc

          a) White zinc

    4) Finishment:

    3) Diameter: 2.9 - 6.3mm

    2) Length: 19 - 250mm

    1) Standard: DIN7504

Features:

Willing Int'l is a professional supplier in the field of steel structure construction. we can supply many kinds of fasteners,bol