| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MATERIAL |
| FASTENER LENGTH | 0.875 INCHES NOMINAL |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD DIAMETER | 0.334 INCHES MINIMUM AND 0.358 INCHES MAXIMUM |
| HEAD HEIGHT | 0.124 INCHES MINIMUM AND 0.136 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-16974 GR 4130H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130H OVERALL |
| NONDEFINITIVE SPEC/STD DATA | B TYPE |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |