| FASTENER LENGTH | 20.312 INCHES NOMINAL |
| HARDNESS RATING | 228.0 BRINELL HULTGREN MINIMUM AND 256.0 BRINELL HULTGREN MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 2.500 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +2.2067 TO 2.2374 INCHES |
| SHOULDER DIAMETER | 1.375 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER DIAMETER | 1.687 INCHES NOMINAL THIRD SHOULDER |
| SHOULDER DIAMETER | 1.875 INCHES NOMINAL FOURTH SHOULDER |
| SHOULDER DIAMETER | 2.500 INCHES NOMINAL SECOND SHOULDER |
| SHOULDER SHAPE | ROUND OVERALL |
| SHOULDER LENGTH | 0.469 INCHES NOMINAL SECOND SHOULDER |
| SHOULDER LENGTH | 0.528 INCHES NOMINAL THIRD SHOULDER |
| SHOULDER LENGTH | 0.909 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 1.187 INCHES NOMINAL FOURTH SHOULDER |
| SPECIAL FEATURES | ITEM HAS 3 ADDITIONAL SHOULDERS:FIFTH IS 2.510 IN.DIA AND 0.375 IN.LG;SIXTH IS 4.000 IN.DIA FOR LG OF 0.156IN.,THEN CHAMFERED 45 DEGREES FOR LG OF 0.469 IN;SEVENTH IS 1.937 IN.DIA AND 1.969 IN.LG;HEAD HAS KEYSEAT 0.250IN. W AND 0.377 IN.DEEP;HEAD DRILLED 0.500 IN.DIA-20 UNF-3B;LOCKING FEATUREINCLUDED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DOD-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OR PHOSPHATE ZINC OVERALL |
| THREAD CLASS | 2G |
| THREAD DIRECTION | LEFT-HAND |
| THREAD LENGTH | 12.875 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | ACME |
| THREAD QUANTITY PER INCH | 2 |