螺纹大径:Major Diam
螺纹 中径:Pitch diam
螺纹 底径:Minor diam
通止规:Go/No go gage
机械性能:mechanical and physical properties
unified thread 统一英制螺纹
Lustrate hydrogen after galvanizing to avoid hydrogen embrittlement 镀后去氢,防止氢脆
Case carburization 表面渗碳
With across flats 对边
With across corners 对角
Radius of fillet:头下圆角
Transition thread length 过度螺纹
Wrenching height 扳拧高度
Rockwell 铬氏硬度
Vickers 维氏硬度
Brinell 布氏硬度
Metallography microscope 金相显微镜
Salt spray device 盐雾试验箱
Tensile testing machine 拉力试验机
Cold forming 冷打
Hot forging 红镦
P C 8 = property class 8 机械性能8级
原材料:Raw material
球化退火:Annealing
冷拔:Drawing
冷镦:Forming
机加工:Machining
螺纹成型:Roll Threading
热处理:heat-treatment
表面处理:finish
去氢:Lustrating hydrogen
检验:Inspection
包装:Packing
入库:Stocking
车床:lathe
磨制:grinding
红打:hot forging
冲压:punching
Diameter 直径
Length 长度

