1 型六角开槽螺母 细牙 A和B级
Hexagon slotted and castle nuts，style l--Fine pitch thread--Product grades A and B

1988-06-24

Гайки шестигранные высокие (тип 2) с мелким шагом резьбы. Классы точности А и В
六角形高螺母（风格2） 细螺距 产品等级A和B

2014-11-14

Hexagon nuts, style 2, with metric fine pitch thread. Product grades A and B. (ISO 8674:1999).
带米制细牙螺纹的2型六角螺母 产品等级A和B（ISO 8674-1999）

2001-10-19

Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread, style 2 — Product grades A and B
2型带公制细牙螺纹法兰的通用扭矩型全金属六角螺母——产品等级A及B

2012-08-17

Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread, style 2 — Product grades A and B
带公制细牙螺纹法兰（带非金属嵌件）的2型通用扭矩型六角螺母——产品等级A及B

2012-08-17