Scr 4-40 pht stzc 1/4 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 5965-01-568-9620
NSN 5985-01-575-5281
NSN 5855-01-268-6468
NSN 5950-00-888-9673
NSN 2925-01-567-8027
NSN 5910-01-273-7922
NSN 6150-01-629-4053
NSN 5998-00-324-0878
NSN 6240-01-004-9634
NSN 4140-01-463-2910
NSN 6130-00-161-2418
NSN 6610-01-123-7292