Size 1/4 x 1 and item has pan head
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 7035-01-296-4737
NSN 6135-00-789-2865
NSN 5930-01-462-9186
NSN 6220-01-321-7329
NSN 5945-01-562-8877
NSN 6240-00-146-9322
NSN 5835-00-143-4153
NSN 5915-00-244-7328
NSN 5925-00-948-0064
NSN 6620-00-676-9563
NSN 6220-00-562-5964
NSN 6610-00-950-7105