British Standard Institution. Specification for the use of high strength friction grip bolts in structural steelwork metric series, part I : general grade. [Books]. - London British Standard Institution 1970 - Pages: 16 - B. S. 4604 : part I : 1970. . Notes Registration no: 28787 (1al) Notes Registration no: 28787 (1al) New campus (c1) Serials holdings Stg16.00 ISBN: 0580062805 0.00 Dewey Class. No.: REF TA/684 / BRI