| EXTENDED WASHER DIAMETER | 0.771 INCHES MINIMUM AND 0.793 INCHES MAXIMUM |
| FASTENER LENGTH | 1.960 INCHES MINIMUM AND 2.020 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD HEIGHT | 0.307 INCHES MINIMUM AND 0.331 INCHES MAXIMUM |
| HEAD STYLE | CHAMFER SERRATED FLANGE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,HEX FLANGED 3/8-16 X 2" |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | CASE HARDNESS RATED AT ROCKWELL C 40.0 MINIMUM; CASE DEPTH IS 0.005 TO 0.011 INCHES; CORE HARDNESS IS RATED ROCKWELL C 25.0 TO 34.0 |
| WIDTH BETWEEN FLATS | 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F1941, FE/ZN 3A ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.960 INCHES MINIMUM AND 2.020 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |