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Wall bolts are divided into two specifications, which are divided into two-end twisted wire (fine wire) and through-length pick wire (thick wire). The main features are as follows:
①. The price of the screw with two-end thread rolling is more expensive than the price of the screw with long thread picking. (Guide: Factors affecting the torque coefficient and tightening axial force of high-strength fasteners for steel structures)
②. The matching nut of the thread rolling screw is cheaper than the matching nut of the picking screw.
③The quality of the thread rolling screw is better than the quality of the thread picking screw.
④. The construction operability of the threaded screw nut is better than that of the threaded screw nut.
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Contact Person: Steven Yan
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Phone: +0086 159 1692 8704
E-MAIL: ym@syjwj.com.cn
One-stop manufacturer for all kind of stamping products and CNC lathed products.