Internal drive ribbed
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.
Classification: Other wrought titanium, nesoi
NSN 6240-01-360-0225
NSN 2925-01-097-0903
NSN 6645-01-055-5427
NSN 6240-01-408-3797
NSN
NSN 5999-00-542-0541
NSN 5910-01-437-8609
NSN 5996-01-580-0582
NSN 5998-00-594-8460
NSN 6145-00-107-3283
NSN 5998-01-372-0553
NSN 6110-00-744-1301