Ms 1/4-20 x 3 hhcs
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 6135-01-071-4923
NSN 5905-00-266-8401
NSN 7035-00-945-3166
NSN 6105-01-450-9399
NSN 6650-01-107-0474
NSN 5930-01-050-0873
NSN 5945-01-356-4135
NSN 5895-00-082-1282
NSN 5960-01-064-3292
NSN 6105-01-024-8077
NSN 5915-01-358-6474
NSN 5990-00-079-0932