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National Stock Number: 5305-01-057-1306
Federal Supply Class: 5305
National Item Identification Number: 010571306
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:
A174-8D | 05457 | BRITISH AEROSPACE NORTH AMERICA INC | A174-8D | K7766 | BRITISH STANDARDS INSTITUTION |
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Techincal Specification:
COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | FASTENER LENGTH | 1.300 INCHES MINIMUM AND 1.340 INCHES MAXIMUM | HEAD DIAMETER | 0.337 INCHES MINIMUM AND 0.387 INCHES MAXIMUM | HEAD STYLE | FLAT COUNTERSUNK | INTERNAL DRIVE STYLE | TORQUE | NOMINAL THREAD DIAMETER | 0.190 INCHES | SCREW MATERIAL | STEEL CORROSION RESISTING | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.407 INCHES MINIMUM AND 0.540 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 32 | THREAD SERIES DESIGNATOR | UNF |
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