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SAE AS4958
- Performance, Nut, Self-Locking, Castellated, Prevailing Torque, UNJ 16 Pitch Thread Form
- standard by SAE International, 10/01/1997
- Publisher: SAE
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This document covers all metal, castellated, self-locking nuts made from alloy steel of the types identified under the Unified Numbering System as UNS G41300 and UNS G43400.Where self-locking nuts with UNJ 16 pitch thread form are required for use with standard MIL-S-8879 external threads.