| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.515 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR |
| AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM OVERALL |
| STYLE DESIGNATOR | ROUND, CLOSED W/SHOULDER |
| EYE INSIDE DIAMETER | 0.250 INCHES MINIMUM AND |
| 0.253 INCHES MAXIMUM |
| SHOULDER THICKNESS | 0.094 INCHES NOMINAL |
| SHANK LENGTH | 3.578 INCHES MINIMUM AND |
| 3.625 INCHES MAXIMUM |
| EYE STOCK THICKNESS | 0.183 INCHES MINIMUM AND |
| 0.193 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.625 INCHES NOMINAL |
| OVERALL LENGTH | 4.484 INCHES NOMINAL |
| DISTANCE FROM CENTER OF EYE TO SHANK END | 4.125 INCHES NOMINAL |
| EYE OUTSIDE WIDTH | 0.625 INCHES NOMINAL |
| DISTANCE FROM THREADED END TO SHANK HOLE CENTER | 3.406 INCHES MINIMUM AND |
| 3.438 INCHES MAXIMUM FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.066 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM FIRST HOLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |