Hex head machine screw with Phillips recess, high-strength alloy steel.
Hexagon head machine screw that also has a Phillips recess, so it can be driven by wrench or screwdriver. Alloy steel heat treated to 160 ksi minimum tensile, cadmium plated, threaded full length.
| Where it's used | Higher-strength small screws in airframe and equipment assembly. |
| Spec status | NAS1801 (AIA National Aerospace Standard). |
A sample of what we've quoted and shipped under this spec. If your dash number isn't here, send it anyway. Every order ships with a Certificate of Conformance and lot records.
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