Screw-thread standards for Federal services
Series: Federal standard -- no. H 28/7
Publisher: General Services Administration, Federal Supply Service
Published: 1978
Place of publication: Washington
Language: eng
Subjects: Screw-threads; Screw-threads, Standard
Notes: Change notice 1, 23 January 1980
Table of contents: Sec. 7. American standard pipe threads (expect dryseal hose coupling types); Sec. 6. Gages and gaging for unified screw threads; Sec. 3. Unified threads of special diameters, pitches, and lengths of engagement.; sec 4. Controlled radius root screw threads, UNJ symbol; Sec. 7. American standard pipe threads (except dryseal and hose coupling types).; sec. 8. Dryseal American standard pipe threads.; sec. 9. Gas cylinder valve outlet and inlet threads.; sec. 10. American national hose coupling and fire-hose coupling threads.; sec. 11. Hose connections for welding and cutting equipment.; sec. 12. Acme threads.; sec. 13. Stub acme threads.; sec. 14. National buttress threads.; sec. 15. American standard rolled threads for screw shells for electric lamp holders and for screw shells of unassembled lamp bases.; sec. 16. Microscope objective and noisepiece [sic], 0.800 - 36AMO.; sec. 17. Surveying instrument mounting threads.; sec. 18. Photographic equipment threads.; sec. 19. Miscellaneous threads; Supp. 1, March 31, 1978; Supp. 1A, August 31, 1978