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 5930-01-648-2582
NSN 5930-01-378-6301
NSN 5950-00-262-0887
NSN 2925-01-540-7389
NSN 5999-00-953-4136
NSN 5960-01-046-4884
NSN 5925-01-069-2201
NSN 6130-00-003-8527
NSN 4140-01-390-6348
NSN 5905-01-433-2146
NSN 6685-00-144-6362
NSN 5950-01-050-1224