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 6110-01-106-4440
NSN 5945-00-928-1194
NSN 5930-01-459-7900
NSN 6240-00-167-2467
NSN 5990-01-641-5782
NSN 6685-01-286-1927
NSN 5905-01-588-7780
NSN 6620-00-708-3323
NSN 6650-01-472-6753
NSN 5925-01-414-7694
NSN 6130-01-259-4661
NSN 6220-01-429-4626