GB/T 2804-1981 Structural elements of modular fixture components

GB/T 2804-1981 Structural elements of modular fixture components GB/T2804-1981 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China Structural elements of modular fixture components, bolts for grooves Material: M12X1,8 40Cr according to YB6-71 Heat treatment: quenching HRC 35~40 Pretreatment: bluing Bureau issued GB 2804 Proposed by the Third Machine Industry Ministry of the People's Republic of China 3 ~. GB 2804 Implemented on July 1, 1982 301st Research Institute of the Third Machine Industry Ministry Tianjin Institute of Modular Fixtures of the First Machine Industry Ministry 2. T-shaped slot
#+9-21
GB2804-81
T-shaped slot is made of 20CrMnTi steel specified in YB 6-71. M8 series hollow blades = 9 and code = 3 can also be made into corresponding chamfers +3 according to the process conditions. Support section
Square support
22.5×22.5
31×30
60X 60
75×75, 90×9h
Rectangular support
1.8±0.15
10± 1.29
22.5×.3mwwW.bzxz.Net
30×45
15×60. 5×.
75×112.5.60×12，90×120
5. Shoulder nut
16 +g-m8
GB 2804--81
6. Through hole, countersunk hole*
*Including waist-shaped hole and its countersunk hole.
7. Series threaded hole
H is the screw-in depth: H is the screw hole depth.
GB2804—81
8. Guide groove width
9. Butterfly pattern
GB 2804—B1
15 +g. 04
650 g.319
10, hole axis diameter*
d or force
GB2804—81
dH6 or Hi
*refers to the hole auxiliary diameter and outer diameter of the component with matching accuracy requirements, 36t
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.