MIL-S-971 Revision B, April 12, 1956
Includes all amendments and changes through Cancellation Notice 1, March 22, 1963
Additional Comments: CNCL S/S BY FF-S-111
This specification covers wood screws with flat, round, and oval heads having slotted or cross recessed type driving connections. Cross recessed wood screws are for installation with the "Phillips" type screw drivers or bits.