| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.13 INCHES MINIMUM AND |
| 0.14 INCHES MAXIMUM |
| FASTENER LENGTH | 0.500 INCHES NOMINAL |
| MATERIAL | STEEL COMP 303 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A 484 OR ASTM A 582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A967,NITRIC 1(F-16,MTHD 11) ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | FLAT FILLISTER |
| HEAD DIAMETER | 0.270 INCHES NOMINAL |
| HEAD HEIGHT | 0.164 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.1406 INCHES MINIMUM AND |
| 0.1426 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAPTIVE-LASER TARGET MARKER SHUTTER ASSEMBLY |