HB 3913-1987
内四角细牙螺钉
1987-04-08
CY/T 271-2023
四角号码检字法
2023-06-16
HB 3930-1987
塑料夹具用外四角加压组件
1987-04-08
SAE AS5372-2
AS5372 Quadrant Forging - Pilots Seat Raising Gear
AS5372四角锻件-飞行员座椅提升装置
1951-07-24
DB21/T 3147-2019
四角蛤蜊工厂化苗种繁育技术规程
2019-05-30
QB/T 2564.9-2015
螺钉旋具 内十二角螺钉旋具
Screwdrivers - Screwdriver for serration socket screws
2015-04-30
QB/T 5377-2019
内十二角螺钉旋具头
Screwdriver bits for serration socket screws
2019-08-02
JIS B 1194-2006
Hexagon socket countersunk head screws
六角内孔沉头螺钉
2006-01-01
KS B ISO 10642(2022 Confirm)
6각구멍 접시머리 스크루
六角内孔沉头螺钉
2007-11-26
JB/T 3411.16-1999
内四方紧定螺钉 尺寸
Internal square set screws -- Dimensions
1999-05-20
DIN 65254
Hexagon insert bits - For screws with internal serrations
六角镶块钻头-用于带内锯齿的螺钉
2002-10-01
QJ 996.19-1986
车床辅助工具 内四方紧定螺钉
1986-06-21
ASD-STAN prEN 4654-200
Aerospace series-Connectors, electrical,EN 4644 specific products-Part 200: Size 8 male quadrax contact pc tails
航空航天系列电气连接器 EN 4644专用产品第200部分:尺寸8的外四角接触pc机尾
2010-09-01
MIL MS16998E Notice 2-Cancellation
SCREW, CAP, SOCKET HEAD AND SCREW, CAP, SOCKET HEAD, SELF-LOCKING: ALLOY STEEL, CADMIUM PLATED, UNF-3A (SUPERSEDING MS16998D) (S/S BY NAS1351-9)
自锁螺钉 带帽 内六角头和螺钉 带盖 内六头:合金钢 镀镉 UNF-3A（取代MS16998D）（由NAS1351-9提供）
2001-07-24