| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| SHANK STYLE | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OR |
| ALUMINUM SLEEVE |
| CADMIUM OR |
| ALUMINUM STEM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR |
| MIL-C-83488 MIL SPEC 2ND TREATMENT RESPONSE SLEEVE |
| QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR |
| MIL-C-83488 MIL SPEC 2ND TREATMENT RESPONSE STEM |
| HARDNESS RATING | 326.0 KNOOP MINIMUM AND |
| 466.0 KNOOP MAXIMUM SLEEVE |
| 48.0 ROCKWELL C MINIMUM AND |
| 53.0 ROCKWELL C MAXIMUM STEM |
| MINIMUM TENSILE STRENGTH | 112000 POUNDS PER SQUARE INCH |
| HEAD MAJOR DIAMETER | 0.762 INCHES NOMINAL |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.673 INCHES MAXIMUM |
| SHANK DIAMETER | 0.372 INCHES MINIMUM AND |
| 0.374 INCHES MAXIMUM |
| GRIP LENGTH | 0.344 INCHES MINIMUM AND |
| 0.407 INCHES MAXIMUM |
| EXPANSION DEVICE | SERRATED STEM-TYPE W |