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National Stock Number: 5306-00-044-5623
Federal Supply Class: 5306
National Item Identification Number: 000445623
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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Manufacturer Information:
ASME-B18.5 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | B18.5 | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | FF-B-584 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | FF-B-584 TY1CL1STAGR1 | 80244 | GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE | MS35751-26 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
FASTENER LENGTH | 3.500 INCHES NOMINAL | HARDNESS RATING | 95.0 ROCKWELL B NOMINAL OVERALL | HEAD DIAMETER | 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM | HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM | HEAD STYLE | ROUND | MATERIAL | STEEL OVERALL | MINIMUM YIELD STRENGTH | 55000 POUNDS PER SQUARE INCH | NECK LENGTH | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | NECK WIDTH | 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | NOMINAL THREAD DIAMETER | 0.250 INCHES | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | ZINC OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.750 INCHES MINIMUM | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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