Double -headed screws are generally used for mineral machinery, bridges, cars, motorcycles, boiler steel structures, hanging towers, large span steel structures and large buildings.
Double -headed screw standard
GB/T900-1988 is a national standard for double bolts.GB2 is the end standard of the fastener outer snail spinning parts.
Double -headed screw model
The double-headed screw models are: M3MM-M100mm, and the length can be customized according to the users needs.
Double head screw price
The price of double screws is around 2-5 yuan.

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