| FASTENER LENGTH | 1.390 INCHES MINIMUM AND 1.437 INCHES MAXIMUM | 
| FEATURES PROVIDED | FINISHED HEAD | 
| GRIP LENGTH | 0.297 INCHES MINIMUM AND 0.329 INCHES MAXIMUM | 
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM  AND 32.0 ROCKWELL C MAXIMUM OVERALL | 
| HEAD HEIGHT | 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM | 
| HEAD STYLE | HEXAGON | 
| 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 | 
| MATERIAL | STEEL COMP 4140  OR STEEL COMP 8740  OR STEEL COMP 8630  OR STEEL COMP 8735  OR STEEL COMP 4130  OR STEEL COMP 4037 OVERALL | 
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD DIAMETER | 0.750 INCHES | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | CADMIUM  AND CHROMATE OVERALL | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 1.061 INCHES MINIMUM AND 1.140 INCHES MAXIMUM | 
| THREAD QUANTITY PER INCH | 16 | 
| THREAD SERIES DESIGNATOR | UNF | 
| WIDTH BETWEEN FLATS | 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM |