M20 12.9 Grade Steel Hexagon Socket Head Cap Screw DIN912 Cylindrical Hex Drive High Tensile Strength Allen Bolt Blackening 12.9 Grade Steel Blackening DIN912:M20*230 (3pcs) or if customized size specifications

or if customized size specifications are required

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M20 12.9 Grade Steel Hexagon Socket Head Cap Screw DIN912 Cylindrical Hex Drive High Tensile Strength Allen Bolt Blackening 12.9 Grade Steel Blackening DIN912:M20*230 (3pcs) or if customized size specificationsWholesale@Retail M20 Hexagon Socket Head Cap Screw Cylindrical Hex Socket Drive High Tensile Strength Allen Bolt 12. 9 Grade Steel Blackening DIN912 Due to too many specifications and models, if there are specifications and models published missing, or you can not find the size specifications, please contact our customer service. thank you!