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 6220-01-275-3771
NSN 2925-01-374-2402
NSN 5945-01-131-3787
NSN 6130-00-774-3231
NSN 7035-00-007-5188
NSN 5996-00-956-0659
NSN 6130-01-244-3147
NSN 5835-01-284-5689
NSN 6685-00-329-7010
NSN 2925-00-139-8309
NSN 6610-01-010-2112
NSN 5998-00-842-0866