Special Features:

Concentric hole in head 0.1596 in. Min dia, 0.1675 in. Max diameter 0.190 in. Thd dia, 32 threads per in. Jf class 3b, countersunk 90 degrees, 0.156 in. Min dia, 0.187 in. Max dia; 0.310 in. Min length, 0.507 in. Length

Properties:

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.