共 50 条
- [1] METRIC FORMED HEX SCREWS. American National Standards Institute, Standards, 1979, (B18. 2. 3. 2M):
- [3] SQUARE AND HEX BOLTS AND SCREWS INCLUDING HEX CAP SCREWS AND LAG SCREWS. SIAM Journal on Applied Mathematics, 1972, (B18. 2. 1):
- [6] METRIC SERIES HEXAGON SOCKET SET SCREWS. American National Standards Institute, Standards, 1979, (B18. 3. 6M):