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 5915-00-917-6814
NSN 5930-01-600-0260
NSN 6150-00-171-9455
NSN 5996-01-228-5334
NSN 6320-01-265-0665
NSN 6610-00-227-8846
NSN 5915-01-462-2124
NSN 6650-00-966-5205
NSN 6145-01-110-4218
NSN 6685-01-660-4910
NSN 6645-01-464-4937
NSN 5945-00-903-4053