#10-16 x 1/2" Hex - Slotted Drive Indented Hex Washer Head Zinc Finish Type AB Point Steel Sheet Metal Screw / FASTENER LENGTH: 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM INTERNAL DRIVE STYLE: D14 SLOT FEATURES PROVIDED: CASEHARDENED NONMACHINE THREAD STYLE: A6 THRU SLOT (TYPE 6) NONMACHINE NOMINAL THREAD DIAMETER: 0.190 INCHES MATERIAL: STEEL OVERALL SURFACE TREATMENT: CADMIUM OVERALL AND CHROMATE SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL SPECIFICATION/STANDARD DATA: 80205-NASM51851 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: D TYPE