| THREAD SERIES DESIGNATOR | UNJF | 
| NOMINAL THREAD DIAMETER | 0.190 INCHES | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| LEAD THREAD QUANTITY | TWO | 
| THREAD LENGTH | 0.430 INCHES MINIMUM AND | 
 | 0.470 INCHES MAXIMUM | 
| FASTENER LENGTH | 0.850 INCHES NOMINAL | 
| MATERIAL | STEEL COMP 302 SPRING | 
 | STEEL CORROSION RESISTING STAND-OFF | 
 | IRON ALLOY 660 FASTENER | 
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING | 
 | ASS 5640 ASSN STD SINGLE MATERIAL RESPONSE OR | 
 | ASTM A555 ASSN STD SINGLE MATERIAL RESPONSE OR | 
 | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF | 
 | ASTM5731 ASSN STD SINGLE MATERIAL RESPONSE OR | 
 | ASTM 5732 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | 
| SURFACE TREATMENT | PASSIVATE OVERALL | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| HEAD STYLE | UNDERCUT PAN NO. 2 | 
| HEAD DIAMETER | 0.482 INCHES NOMINAL | 
| HEAD HEIGHT | 0.200 INCHES MINIMUM AND | 
 | 0.240 INCHES MAXIMUM | 
| INTERNAL DRIVE STYLE | HEXAGON | 
| MATERIAL ACCOMMODATED THICKNESS | 0.108 INCHES NOMINAL |