5305-01-569-8261 SCREW,MACHINE Index 5305-01-569-8263 SCREW,MACHINE

National Stock Number:
5305-01-569-8262

Federal Supply Class:
5305

National Item Identification Number:
015698262

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.


Manufacturer Information:
BACS12HN08-906725SPS TECHNOLOGIES, LLC
BACS12HN08-90ZC92HEARTLAND PRECISION FASTENERS INC
BACS12HN08-91ER653-V FASTENER CO., INC.
BACS12HN08-91RC86HOWMET GLOBAL FASTENING SYSTEMS INC
BACS12HN08-981205THE BOEING COMPANY


Techincal Specification:
FASTENER LENGTH0.5625 INCHES NOMINAL
HEAD HEIGHT0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
III PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, HEX HEAD WITH CROSS RECESS, A286 CRES, 160 KSI
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.1640 INCHES
SCREW MATERIALIRON ALLOY 660
SCREW SURFACE TREATMENTCHROMATE AND CADMIUM
WIDTH BETWEEN FLATS0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.4995 INCHES MINIMUM AND 0.5305 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJC


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