Size 3/16 x 3/8 and item has pan head with washer
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 6220-01-551-1681
NSN 7035-01-215-2449
NSN 6130-00-369-6637
NSN 5975-00-840-0045
NSN 5905-01-467-9212
NSN 5999-01-615-8954
NSN 5855-00-361-0167
NSN 5905-01-022-6457
NSN 6685-00-754-7495
NSN 5990-00-594-7291
NSN 5895-00-920-7142
NSN 5930-01-250-0831