Haiyan bafang din933 stainless steel lags hex bolt and nut material m38 m5 m6 m7 m8 m10 m12 m14 m16 m18 m20 hex bolt us $0.01$0.03 / piece
The wedge anchor, drop-in anchor and concrete strike anchor can only be used in solid concrete and have the highest & most consistent holding values in concrete. concrete sleeve anchors can be used in concrete, brick or block but their holding values are less in terms of shear and pullout values.
Jam nuts, cotter pins, lock nuts, lock washers and similar devices also prevent the loss of the bolt or nut by back off but they result in added weight, inconvenience and cost. they do not reduce the tendency to fatigue when loose. further, the insecurity of conventional mechanical locks are reason enough for most designers to reject them. such
Stainless steel ss304 a2 m10x200/250/300 /hanger bolt screw/ double end screw with wood thread/hanger screws/dowel screws for solar energy ... made in china stainless steel drywall screw/roofing screw/set screw/self drilling screws/wood screw/gypsum screw/self tapping screw ... din 7985 304 stainless steel phillips pan head machine screw
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