| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.400 INCHES NOMINAL |
| FASTENER LENGTH | 0.700 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4130 OR |
| STEEL COMP 8630 OR |
| STEEL COMP 8735 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.265 INCHES MINIMUM AND |
| 0.297 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND |
| 0.752 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| POINT STYLE | CHAMFER DOG |
| POINT LENGTH | 0.300 INCHES NOMINAL |
| POINT DIAMETER | 0.250 INCHES NOMINAL |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 98752 |
| DESIGN CONTROL REFERENCE | 7132475-03 |