| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| HARDNESS RATING | 60.0 ROCKWELL B NOMINAL SHANK END |
| HEAD MAJOR DIAMETER | 0.326 INCHES MINIMUM AND 0.351 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66,COMP 1005 THRU 1022,ANY COND FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| SHANK DIAMETER | 0.182 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |
| SPECIAL FEATURES | USED ON MACH GUN,CAL. 50: FIXED,M85 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TYPE M,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OR PHOSPHATE ZINC OVERALL |