| MATERIAL | STEEL COMP 4130 OR |
| STEEL COMP 8640 OR |
| STEEL COMP 8630 OR |
| STEEL COMP 8740 OR |
| STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR |
| ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, TYPE II, SC 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNF LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNF RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.250 INCHES RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 28 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 28 RIGHT EXTERNAL |
| THREAD CLASS | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| 2A RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.300 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.650 INCHES NOMINAL RIGHT EXTERNAL |
| SPECIAL FEATURES | HEXAGON HEAD OVERALL LENGTH 1.100 NOMINAL INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | STUD, ADAPTER |