BS PARTS 1 &2. Limits and Tolerances for ISO Screw Thread Gauges. BS comprises two parts. Part 1 provides information and data on the basic principles, it is based on ISO /1 and ISO /3. Part 2 tabulates diameters of constant, course and fine pitch series threads, it is based on ISO /2. BS Pt3. 31 Dec This edition of Part 2 combines the information previously given in both Parts 2 and 3, and is set out in a single table so as to present designers and users with the limits and tolerances for ISO metric threads in the most convenient form. For further detailed information see BS Pending the publication. 30 Nov BS , PD ISO metric threads, Dimensions, Bolts, Diameter, Nuts, Thread forms, Size, Thread pitch, Threads, Dimensional tolerances, Aircraft components. ISO metric screw threads Principles and basic data.
31 Dec This British Standard, a part of the BS series, specifies the fundamental deviations, tolerances and limits of size for the tolerance classes 4H, 5H, 6H and 7H for internal threads (nuts) and 4h, 6g and 8g for external threads (bolts) where appropriate for: coarse pitch series within the range 1 mm to 30 Nov ISO metric screw threads. Specification for selected limits of size. BS part - Download as PDF File .pdf), Text File .txt) or read online.
Find the most up-to-date version of BSI - BS at Engineering BS ISO metric screw threads Part 2: Specification for selected limits of size. 21 Jan The standard BS Part 1 relates to single start parallel screw threads of sizes from 1 to mm. Part 2 provides selected limits of sizes for the rang of screw threads. The ISO standards quoted below are very similar the the British standards and provide essentially the same information. The Standard.