themechanical grade is 12.9, case hardening is hrc 38 42, material is 40cr,and the surface is treated with bluing, screw thread has two type description, one is the metric system m12 m24 6g, another is denominator system 1/2 1/4 2a.the specification can be customized.
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high quality black hex track shoe bolt and nut 12.9 grade excavator track bolt. $0.10 $5.00 / piece. 100 pieces china factory supply 12.9 grade excavator and bulldozer track shoe bolts nuts. $0.10 $50.00 / piece .. jingjiang yisheng sell low price 12.9 10.9 grade screws bolts nuts washers to argentina. $0.10 $50.00 / piece. 100
excavator and bulldozer track shoe bolt & nut for g.e.t. spare parts place of origin ningbo china mainland model number 4f3646 certification iso9001 2000 1 bucket tooth pin was made of material 40cr. 2 used for connect with bucket tooth & adapter. 3 size can be made as your requirements. we also supply plow bolt, segment bolt, hex
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fasteners are used for fastening and securing materials such as wood, metal, plastic, or concrete. they include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch.