Nickel plated hex nut, nickel plated heavey hex nut, heavey hex nut manufacturer / supplier in china, offering m3-m100 nickel plated heavey hex nut, grade 8.8 m12 carbon steel hot galvanizing guardrail bolts, grade 8.8 m8 m10 m12 carbon steel black zinc plated din6921 hex cap flange nuts and so on.
Coating thickness: hot-dip galvanized fasteners, depending upon diameter, will have from 1.7 to 3.4 mils (43 to 86 microns) of impervious zinc coating. cathodic protection: unlike other barrier coatings, such as paint, zinc is a sacrificial metal and
Nuts. description. a style 1, heat treated fastener with a metric thread pitch. nuts m16 and smaller are chamfered on the top and the bearing surface. nuts m20 and larger may be double chamfered, or have a washer face on one side and a chamfered surface on the opposite side.
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