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 5920-01-429-1375
NSN 5960-01-412-0619
NSN 6145-01-438-0368
NSN 6150-01-214-6586
NSN 5999-01-132-9292
NSN 5950-01-416-7188
NSN 6620-00-555-3992
NSN 5965-01-315-5764
NSN 7035-00-140-3070
NSN 5945-01-431-5195
NSN 5925-01-625-8924
NSN 6150-00-291-1868