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National Stock Number:
5306-00-276-8434
Federal Supply Class:
5306
National Item Identification Number:
002768434
Description:
BOLT,SQUARE NECK
Detail:
A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
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Techincal Specification:
| COUNTERSINK ANGLE | 80.0 DEGREES NOMINAL | | FASTENER LENGTH | 2.500 INCHES NOMINAL | | HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL | | HEAD DIAMETER | 1.406 INCHES MINIMUM AND 1.512 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | | NECK LENGTH | 0.563 INCHES MINIMUM AND 0.626 INCHES MAXIMUM | | NECK WIDTH | 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | SPECIAL FEATURES | FURNISHED W/ONE HEX NUT | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 1.343 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 9 | | THREAD SERIES DESIGNATOR | UNF |
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