5305-01-502-4255 SCREW,MACHINE Index 5999-01-502-4257 CONTACT,ELECTRICAL

National Stock Number:
5305-01-502-4256

Federal Supply Class:
5305

National Item Identification Number:
015024256

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:
35-0062-0011LF77GENERAL DYNAMICS ITRONIX CORPORATION


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNC
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.167 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
HEAD DIAMETER0.172 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE II
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.086 INCHES
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTZINC AND CHROMATE
THREAD LENGTH0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
THREAD CLASS2A


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