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 6135-00-377-9165
NSN 5960-01-418-2641
NSN 6150-00-329-5720
NSN 5998-00-296-3570
NSN 5998-00-066-3541
NSN 5915-01-238-9322
NSN 5895-01-029-5471
NSN 6220-00-629-9271
NSN 2925-00-134-4827
NSN 5960-01-398-4883
NSN 5925-00-529-0441
NSN 5855-01-361-2362