Specification for steel dowel pins.  metric series /  Part 3,  parallel and typer types having screw threads for extraction purposes : 
British Standards Institution. 
 - 10 pages :  illustrations ;  33cm. 
 - British standard ;  BS 1804 : PART 1 : 1973 .
 - British standard ;  BS 1804 : PART 1 : 1973 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Building materials--Great Britain.<br/>Structural design.<br/>Welded steel structures.