| 000 | 00359nam a2200121 4500 | ||
|---|---|---|---|
| 027 |
_aBS 1981 : 1972 _q1972 |
||
| 041 | _aeng | ||
| 942 | _cSD | ||
| 110 | _aBritish Standard Institution, London | ||
| 245 | _aBS 1981 : 1972 : Specification for unified machine screws and machine screw nuts | ||
| 260 |
_aLondon _bBritish Standard Institution |
||
| 500 | _aSTD586 | ||
| 999 |
_c172631 _d172631 |
||