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National Stock Number:
5305-00-437-4287
Federal Supply Class:
5305
National Item Identification Number:
004374287
Description:
SCREW,MACHINE
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
| A25-3C | K7766 | BRITISH STANDARDS INSTITUTION |
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Techincal Specification:
| FASTENER LENGTH | 0.750 INCHES MINIMUM AND 0.790 INCHES MAXIMUM | | HEAD HEIGHT | 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 4.7 MILLIMETERS | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BS S.114 FED STD SINGLE MATERIAL RESPONSE OR BS S.95 FED STD SINGLE MATERIAL RESPONSE OR BS S.94 FED STD SINGLE MATERIAL RESPONSE OR BS S. 96 FED STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL CORROSION RESISTING | | SCREW SURFACE TREATMENT | CADMIUM | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | D.T.D.904,FSCM 05901 MFR REF SINGLE TREATMENT RESPONSE | | THREAD LENGTH | 0.410 INCHES MINIMUM AND 0.490 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD PITCH IN MILLIMETERS | 0.81 | | THREAD SERIES DESIGNATOR | BA | | WIDTH BETWEEN FLATS | 0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM |
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