M4 M16 Carbon steel Galvanised Hexagon extended Nuts Class 4.8 Grade 8.8 Zinc plating
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... the role of fastening machine parts. One of the most widely used by the 1 type of six nuts, C nuts for surface roughness, the precision requirements of the machine, equipment or structure is not high; A and B nuts for the surface is more polished, the...
Hunan Jia Shan Hardware Tech Co., Ltd.
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