| THREAD SERIES DESIGNATOR | M | 
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS | 
| THREAD PITCH IN MILLIMETERS | 1.25 | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 52.00 MILLIMETERS MINIMUM AND | 
 | 52.36 MILLIMETERS MAXIMUM | 
| FASTENER LENGTH | 52.00 MILLIMETERS MINIMUM AND | 
 | 52.36 MILLIMETERS MAXIMUM | 
| MATERIAL | STEEL OVERALL | 
| SURFACE TREATMENT | ZINC OVERALL | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F1941M ASSN STD SINGLE TREATMENT RESPONSE OVERALL | 
| HEAD STYLE | FLAT FILLISTER | 
| HEAD DIAMETER | 12.73 MILLIMETERS MINIMUM AND | 
 | 13.27 MILLIMETERS MAXIMUM | 
| HEAD HEIGHT | 7.64 MILLIMETERS MINIMUM AND | 
 | 8.00 MILLIMETERS MAXIMUM | 
| INTERNAL DRIVE STYLE | HEXAGON | 
| WIDTH ACROSS FLATS | 6.02 MILLIMETERS MINIMUM AND | 
 | 6.14 MILLIMETERS MAXIMUM | 
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP,HEXAGON |