| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 0.365 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4032 OR |
| STEEL COMP 4037 OR |
| STEEL COMP 4137 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 8630 OR |
| STEEL COMP 8640 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | ZINC AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM 3633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND |
| 53.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| POINT STYLE | DOG |
| POINT LENGTH | 0.070 INCHES MINIMUM AND |
| 0.130 INCHES MAXIMUM |
| POINT DIAMETER | 0.150 INCHES MINIMUM AND |
| 0.170 INCHES MAXIMUM |
| SPECIAL FEATURES | ALTERNATED DRAWING MAKE FROM MS51476-16, ONLY DIFFERNCE IS DOG TIP WITH TIP AT .160 DIA AND .100 BACK FROM END OF TIP. |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW RETAINER |