AW-HB12 Steel square head bolt/big long T-bolts/Customized bolt

Steel square bolt, T-head bolt, To drawing bolts

Material: Carbon Steel, Steel class 4.6/4.8/5.6/6.8/8.8/9.8/10.9/12.9

Size: M4, M5, M6, M8, M10, M12, M16, M20, M24, M30

​​Surface treatment: Zinc plated Cr3+blue,yellow, blk, green, Plain,Hot-dipped galvanized

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