| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.875 INCHES MINIMUM |
| FASTENER LENGTH | 3.50 INCHES NOMINAL |
| MATERIAL | STEEL COMP 304 OR |
| STEEL COMP 304L OR |
| STEEL COMP 305 OR |
| STEEL COMP 384 OR |
| STEEL COMP 316 OR |
| STEEL COMP 316L OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F837 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | FLAT FILLISTER |
| 0.219 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.15625 INCHES NOMINAL |
| SPECIFICATION/STANDARD DATA | 81343-SAE J2295 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | CAP SCREW;STAINLESS STEEL SOCKET HEAD CAP SCREW |
| HEAD DIAMETER | 0.419 INCHES MINIMUM AND |
| 0.438 INCHES MAXIMUM |
| HEAD HEIGHT | 0.209 INCHES MINIMUM AND |