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Home > machined > Custom 4140 Flat Socket Head Screws - 1/4-28 X .595" Flat Socket Screws

These custom 4140 flat socket head cap screws were produced domestically for our aerospace customer using AISI 4140 alloy steel material per AMS 6349. Heat treat to 160-180 ksi per AMS 2759 was performed to finalize the production process. Magnetic particle inspection per ASTM 1444 (Type I, Meth A, Sens Lev 3) was performed after the machining process was completed.