Nomenclature for bolts, screws, nuts and accessories / 
British Standards Institution. 
 - 55 pages :  illustrations ;  33cm. 
 - British standard ;  BS 6040 : 1981 .
 - British standard ;  BS 6040 : 1981 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Screw-threads, Standard.<br/>Bolts and nuts--Great Britain.