| FASTENER LENGTH | 1.010 INCHES MINIMUM AND 1.030 INCHES MAXIMUM |
| FEATURES PROVIDED | WASHER |
| GRIP LENGTH | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM |
| HEAD HEIGHT | 0.077 INCHES MINIMUM AND 0.087 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SPECIAL FEATURES | 0.408 IN. TO 0.412 IN. COLLAR O/D |
| WIDTH BETWEEN FLATS | 0.094 INCHES MINIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |