12.9級內六角緊定螺絲、12.9級內六角機米螺絲、美制緊定螺絲、美制凹端滾花緊定螺絲、不銹鋼緊定螺絲、不銹鋼凹端滾花緊定螺絲、緊定螺絲、平端緊定螺絲、圓柱端緊定螺絲、鋼珠緊定螺絲!均有庫存,高品質好緊定,臺灣.規范:DIN913、DIN914、DIN915、DIN916
According:DIN913、DIN914、DIN915、DIN916
材料:SCM435 (鉻鉬合金鋼)
Material:SCM435 (Alloy Steel)
硬度:HRC 45-53
Hardness:HRC 45-53
表面:染黑