Scr 4-40 pht stzc 1/2 pch
No other part numbers with same form, fit, and function found.
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
NSN 6105-01-558-6993
NSN 6685-00-234-8995
NSN 5990-00-724-0171
NSN 5930-01-010-2947
NSN 6240-01-544-5712
NSN 5855-01-492-5666
NSN 6610-01-434-0289
NSN 6220-00-893-3558
NSN 5950-01-251-1386
NSN 5960-01-407-1350
NSN 5925-01-365-5442
NSN 7035-00-153-3826