Techincal Specification:
| MATERIAL | STEEL COMP 8740 OR | | STEEL COMP 4340 OR | | STEEL COMP 4140 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY 2, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLUSH COUNTERSUNK | | HEAD MAJOR DIAMETER | 0.389 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | SHANK STYLE | PIN-RIVET, TAPERED, THREADED | | FASTENER LENGTH | 1.395 INCHES NOMINAL | | SHANK DIAMETER | 0.2884 INCHES NOMINAL | | TIP DIAMETER | 0.2694 INCHES NOMINAL | | GRIP LENGTH | 1.062 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD SIZE | 0.250 INCHES | | THREAD CLASS | 3A | | THREAD QUANTITY PER INCH | 28 | | THREAD DIRECTION | RIGHT-HAND | | LUBRICATION | CETYL ALCOHOL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | FASTENER, SHEAR, 100 DEGREES STANDARD FLUSH HEAD |
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