| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 5305-01-682-0551
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 016820551
 
 Description:
 SCREW,MACHINE
 |  
		                        | 
 Manufacturer Information:
 
 | 91420A224 | 39428 | MCMASTER-CARR SUPPLY CO | 
 |  
					            | 
 Techincal Specification:
 
 | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL |  | FASTENER LENGTH | 11.8 MILLIMETERS NOMINAL |  | HARDNESS RATING | 71.0 ROCKWELL B NOMINAL |  | HEAD DIAMETER | 7.5 MILLIMETERS NOMINAL |  | HEAD HEIGHT | 2.2 MILLIMETERS NOMINAL |  | HEAD STYLE | FLAT COUNTERSUNK |  | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLAT HEAD SCREW |  | NOMINAL THREAD DIAMETER | 4.0 MILLIMETERS |  | SCREW MATERIAL | STEEL |  | SCREW SURFACE TREATMENT | ZINC |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 11.8 MILLIMETERS NOMINAL |  | THREAD PITCH IN MILLIMETERS | 0.7 |  | THREAD SERIES DESIGNATOR | M | 
 |  |