Q: Is there a MIL spec or NAS spec for MP35N socket head cap screws?
A: No, there is not an MS or NAS spec that covers MP35N socket head cap screws. For an MP35N socket head, typically we would offer per dimensions of NAS 1351 [or 1352] with material per AMS 5844, Aged to Min 260 ksi UTS, Min 230 ksi Yield.