5305-01-610-9399 SCREW,CAP,HEXAGON HEAD 5305-01-610-9831 SCREW,TAPPING

National Stock Number:
5305-01-610-9777

Federal Supply Class:
5305

National Item Identification Number:
016109777

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:
3226-8278-011939KIDDE FIRE FIGHTING, INC.


Techincal Specification:
FASTENER LENGTH0.625 INCHES NOMINAL
INTERNAL DRIVE STYLECROSS RECESS TYPE II
PART NAME ASSIGNED BY CONTROLLING AGENCYSCR.PHIL.1/4-20 X 5/8LG. S.S.
NOMINAL THREAD DIAMETER0.250 INCHES
SCREW MATERIALSTEEL CORROSION RESISTING
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.625 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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