BSI - BS 919-4
Screw gauge limits and tolerances - Part 4: Limits of size for gauges for screw threads of unified form diameters 1/4 in and larger
| Organization: | BSI |
| Publication Date: | 31 October 2007 |
| Status: | inactive |
| Page Count: | 72 |
| ICS Code (Metric screw threads): | 21.040.10 |
scope:
Gauges, setting plugs and check plugs for standard Unified Coarse (UNC), Fine (UNF) and Unified Extra Fine (UNEF) threads (BS 1580:Parts 1 and 2). Go and not go screw plug, solid screw ring, adjustable screw ring, and adjustable screw caliper gauges; double length setting plugs for go and not go adjustable screw ring gauges and single length setting plugs for adjustable screw caliper gauges; go and not go plain plug and caliper gauges for the crest diameters of product threads.
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