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 6220-01-439-9914
NSN 5915-01-576-2602
NSN 6610-00-269-4506
NSN 5998-01-351-6276
NSN 5945-01-584-0059
NSN 5985-00-752-0995
NSN 6620-01-494-9858
NSN 5895-01-541-4510
NSN 5965-01-370-1891
NSN 6685-00-970-3897
NSN 6110-01-472-2504
NSN 5996-01-580-0582