5305-00-305-5474, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-305-5474

Federal Supply Class:
5305

National Item Identification Number:
003055474

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

422510-2

94580

HONEYWELL INTERNATIONAL INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.030 INCHES MINIMUM AND 0.044 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.052 INCHES MINIMUM AND 0.076 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	0.265 INCHES MINIMUM AND 0.299 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.061 INCHES MINIMUM AND 0.064 INCHES MAXIMUM
HEAD HEIGHT	0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM
HEAD STYLE	HEXAGON
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.086 INCHES
SECOND DIAMETER FROM HEAD	0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM
THREAD LENGTH	0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	56

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