British standard specification for clevis pins with heads  Metric series / 
British Standard Institution 
 - London :  British Standards Institution,  1980 
 - 3 pages :  ill. ;  30 cm. 
 - British standard ;  BS 5894 : 1980 .
 - British standard ;  BS 5894 : 1980 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Portland cement--Standard<br/>Concrete--Standard