ISO 9254 - 199312角(十二鍵)法蘭面螺釘 - 長MJ螺紋 - 強度等級小于等于1100MPa Aerospace - Bolts, Normal Spline Head, Normal or Pitch Diameter Shank, Long Length MJ Threads, Metallic Material, Coated or Uncoated, Strength Classes Less Than or Equal to 1100 MPa
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Q 185六角法蘭面螺栓 細牙 小系列 標準型 Hexagon Flange Bolts-fine Pitch Thread - Small Series - Type N
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SAE J 58 - 1998十二角法蘭螺栓 Bihexagonal Head Bolts with Flange