| COUNTERSINK ANGLE | 120.0 DEGREES MINIMUM AND 124.0 DEGREES MAXIMUM |
| EXPANSION DEVICE | PLAIN STEM-TYPE T |
| FASTENER LENGTH | 0.371 INCHES MINIMUM AND 0.401 INCHES MAXIMUM |
| GRIP LENGTH | 0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| HEAD MAJOR DIAMETER | 0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES MANDREL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| MATERIAL | ALUMINUM ALLOY 5056 BODY |
| MATERIAL | STEEL COMP 1012 OR STEEL COMP 1025 OR STEEL COMP 1045 OR STEEL COMP 1075 MANDREL |
| SHANK DIAMETER | 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| SHANK STYLE | SELF-PLUGGING |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE BODY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 2ND TREATMENT RESPONSE OR QQ-P-416 FED SPEC 3RD TREATMENT RESPONSE OR QQ-P-416 FED SPEC 4TH TREATMENT RESPONSE OR MIL-P-16232 TY Z CL 2 MIL SPEC 5TH TREATMENT RESPONSE OR MIL-P-16232 TY Z C+ 4B MIL SPEC 5TH TREATMENT RESPONSE MANDREL |
| SURFACE TREATMENT | ZINC AND CHROMATE OR CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OR PHOSPHATE ZINC MANDREL |