?????????: 0 ??????: ???? ?????? ??? ?????: 2025-07-22 ?????: ????
???? ??????? ?????? ??????? ??? ???? ??? ?????? ???? ''Allen Screws'' ??? ??????? ??????? ???????? ?? ????? ????? ???????. ???? ??? ????????? ?? ???? Allen Manufacturing Company - ??? ????? ????? ???????? ?????? ???????? ????? ???? ???? ??? ??? ????? ?????? ???? ??????? ??????? ????? ??????? ??????? ?? ??? 1910.
1909-1910 : ???? ???? Allen ?????? ???? ????? ??????? ???????? ??????
1910: ??? ??? ????? ???????? ????????? US960,244 (????? ?????? ??????? ???????)
1920-1940 : ??? ????? ??????? ?? ????? ???????? ??????? ??? ??????? ??? ???? ????
????????? : ???? ????? 'Allen' ??????? ????? ?? ??????? (???? ????? 'Kleenex' ???????? ???????)
??????? ????????: ?? ???? ??????? ???????? DIN 912 ?????? ???? ???? ??????? ??????? 'Socket Head Cap Screw'
| ????????? ????? | ????? ?????? ????? | ?????? | ?????? ??????? |
|---|---|---|---|
| ??????? ?????? | ???? ???? ??? ?????? | - | ???? 4762 |
| ????????? ???????? ??????? | ???? ???? ??? ?????? ??????? | ???? ???? | ??? B18.3 |
| ????? ?????? | ???? ???? ??? ?????? ??????? | ???? ???? | ????????/? 70.1 |
??? ?????? : ????? ????? ????? ???? (????? ????)
????? ????? : ??? ??????? ?????? ????
??? ?????? : ??? ????? ?????? ???? ?????? 120 ????
??? ??? ????? ???? ????? 40-50% ?? ???? ??????
????? ??????? ????? 35% ?????? ??????? ????? ????????
?????? ????? ???????? ?? ????????? ???????????
???????? ???????? ????????? ?? ????? ???????? ???????:
??????? AN/MS ???? ??????????
????? ????? ????? 30% ?? ????? ????????
??????? ????? ??????? ???????
???? ????????? ???????? ??????? (???????? ????? ???????)
???????? ??? ????? ??????? (±0.05 ??)
?????? ???????? ???????? ???????
??? ?????? ???????? : 80% ?? ??????? 'Allen Screw'
????? ????????? : ?????? 60% ?? ??????? ???????? ???????
????? ???????? : ????????? ??????? ????
??? ?? ?????? ??????? ?????? ??????? ISO ????????
?? ???? ????????? ???????? ??????? 'Allen Screw'.
??? ?? ?????? ???????? ???????? ?????? ?????
????? ?????? 'ALLEN' ??? ?????
?????? ???????? ??????? ???????
???? ???? ?? ??????? (±0.01 ??)
???? ?? ?????? ISO/GB ????????
?????? ?? ????? ???? ??????
?????? ???????? ???? ??????? (?????? ??????? ≥90%)
???? ????? ??? ????? ??????? ???????? ???? 2023 ???:
????? ???? ???????? 38% ?? ?????????
???? ??????? ?????? ????? ????? ????? 12?
????? ????? ??? ????? ?????? ???????? ????? 25% ??????
?????? ????: ????? ??????? ???????? ?? ????? Allen ????? ?? ????? ??? ?????? ??????? ???????? ??????????
?? ??? ??????? ??? 'Socket Head Cap Screw' ?'Allen Screw' ???? ?????? ??????? ????????. ???????? ???????:
????? ????????? ???????? ?? ????????? ??????
?????? ???????? ?? ????????? ????????
????? ???????? ?????? ????? ????? ??????
????????? ?????? ??????? ?? ????? ???????? ????? ???? ????? ?????? ??? ???? ??????? ?? ISO 4762 , DIN 912 ? GB/T 70.1 . ?????? ???? ??? ?????? ??? ????????? ?????? ????????? ???????? ??????.
???? ???? Ximingyang? ????? Linmingguan? ????? Yongnian? ????? Handan? ?????? Hebei? ?????