AMS7251D -- NUTS, SELF-LOCKING, CORROSION AND HEAT RESISTANT STEEL HIGH STRENGTH, ALL METAL 1200°F (650°C) USE, UNIFIED "J" (MIL-S-8879) THREAD FORM
SAE InternationalNUTS, SELF-LOCKING, CORROSION AND HEAT RESISTANT STEEL High Strength, All Metal 1200°F (650°C) Use, Unified "J" (MIL-S-8879) Thread FormAMS7251D