| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.875 INCHES MINIMUM |
| FASTENER LENGTH | 1.500 INCHES NOMINAL |
| MATERIAL | STEEL COMP 302 OR |
| STEEL COMP 303 OR |
| STEEL COMP 304 OR |
| STEEL COMP 305 OR |
| STEEL COMP 316 OR |
| STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD 1ST MATERIAL RESPONSE OR |
| 66 FED STD 2ND MATERIAL RESPONSE OR |
| 66 FED STD 3RD MATERIAL RESPONSE OR |
| 66 FED STD 4TH MATERIAL RESPONSE OR |
| 66 FED STD 5TH MATERIAL RESPONSE OR |
| COMP16-18 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT CHAMFER |
| HEAD DIAMETER | 0.262 INCHES MINIMUM AND |
| 0.270 INCHES MAXIMUM |
| HEAD HEIGHT | 0.159 INCHES MINIMUM AND |
| 0.164 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.141 INCHES MINIMUM AND |
| 0.143 INCHES MAXIMUM |
| SPECIAL FEATURES | SOLID FILM LUBRICANT APPLIED TO SHANK AND THREADS IAW MIL-L-8937 FORM B |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 88818 |
| DESIGN CONTROL REFERENCE | A320A418-101 |