| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| FEATURES PROVIDED | CASE-HARDENED |
| HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL | STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | C TYPE |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.250 INCHES |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |