Indian standard dimensions for nominal lengths and thread for bolts screws and studs 
Indian Standards Institution 
 - New Delhi  Indian Standards Institution  1967 
 - 6p. 
<br/><br/> IS 4206 : 1967 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Standards <br/> Thread Lengths Bolts<br/> Thread Lengths-Screws <br/>NASA Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>083.7:621.882.14  / ISI