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 6645-01-441-0937
NSN 6130-01-187-7723
NSN 5950-01-239-3976
NSN 5996-00-201-3763
NSN 5895-01-623-1910
NSN 6135-01-122-4448
NSN 5835-00-572-7445
NSN 6130-00-269-8273
NSN 5945-01-104-4082
NSN 6135-01-290-6487
NSN 5985-01-198-6457
NSN 6645-01-505-5772