5305-01-227-3989 SCREW,MACHINE Index 5305-01-227-3991 SCREW,DRIVE

National Stock Number:
5305-01-227-3990

Federal Supply Class:
5305

National Item Identification Number:
012273990

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:
089-6163-0422373HONEYWELL INTERNATIONAL INC.
089K-6163-04K0668LEONARDO UK LTD
4-40UNC2A1/4LGANSIB18.6.3 FILHD80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
HEAD HEIGHT0.094 INCHES MINIMUM AND 0.107 INCHES MAXIMUM
HEAD STYLEFILLISTER
NOMINAL THREAD DIAMETER0.112 INCHES
NONDEFINITIVE SPEC/STD DATA4.40 SIZE AND 1/4IN. LENGTH AND STLS/STL MATERIAL
INTERNAL DRIVE STYLECROSS RECESS TYPE II
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONIFI-104 ASSN STD ALL MATERIAL RESPONSES
SCREW MATERIALSTEEL COMP 301 OR STEEL COMP 430
SCREW SURFACE TREATMENTPASSIVATE
THREAD CLASS2A
THREAD LENGTH0.250 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNC
SPECIFICATION/STANDARD DATA22373-089-6163 MANUFACTURERS SPECIFICATION CONTROL AND 80204-ANSI B18.6.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUPPLEMENTARY FEATURESARING-KING PT LIST 006-8024-05


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