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 6240-01-061-6516
NSN 6130-00-269-3448
NSN 5930-00-201-8719
NSN 5925-00-188-8678
NSN 5920-00-336-9055
NSN 5965-01-125-5367
NSN 6320-01-412-2973
NSN 5930-00-246-3846
NSN 5925-01-312-4690
NSN 5895-00-131-2431
NSN 5999-01-415-5090
NSN 5930-01-645-0686