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AS 2181.1 PDF
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Screwing Taps, Part 1: General Purpose Metric Screw Threads
| Published by | Publication Date | Number of Pages | |
| AS | 06/30/1978 | 44 |
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AS 2181.1 – Screwing Taps, Part 1: General Purpose Metric Screw Threads
Specifies taps for cutting ISO metric general purpose screw threads in both fine and coarse pitch series. It covers materials, properties, and basic design details for taps of diameter 1 to 64 mm; the diameter/pitch combinations are in agreement with AS 1721 and AS 1725. The ISO tolerance system for the threaded limits is adopted except that the tolerance increments have been additionally applied to the major diameter in order to ensure assembly of coated products. Tap blanks are the same as those given in ISO/R529 and ISO 2283.
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