Screw 4-40; ss; 1/4
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 5935-00-072-9424
NSN 5930-00-110-4952
NSN 6145-00-291-5388
NSN 5925-01-174-6558
NSN 5950-01-113-7291
NSN 6620-01-376-3744
NSN 5895-01-554-8489
NSN 7035-00-312-3055
NSN 6150-01-115-0858
NSN 5965-01-381-4631
NSN 5998-01-423-0685
NSN 5835-00-356-1658