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National Stock Number:
5305-01-529-7231
Federal Supply Class:
5305
National Item Identification Number:
015297231
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| B1831BH200040N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 4G6G | | FASTENER LENGTH | 40.0 MILLIMETERS NOMINAL | | HEAD HEIGHT | 19.7 MILLIMETERS MINIMUM AND 20.0 MILLIMETERS MAXIMUM | | HEAD DIAMETER | 29.5 MILLIMETERS MINIMUM AND 30.0 MILLIMETERS MAXIMUM | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS | | WIDTH ACROSS FLATS | 17.0 MILLIMETERS NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM 633, TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 40.0 MILLIMETERS NOMINAL | | THREAD PITCH IN MILLIMETERS | 2.5 | | THREAD SERIES DESIGNATOR | ISO M |
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