5305-01-124-2713, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-124-2713

Federal Supply Class:
5305

National Item Identification Number:
011242713

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:

179662 1/2

56848

UNITED STATES DEPARTMENT OF TREASURY MINT PROCUREMENT DIV

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.505 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	17.505 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	10.255 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	11.005 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	21.750 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	1.490 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD	2.000 INCHES NOMINAL
HEAD HEIGHT	1.000 INCHES NOMINAL
NOMINAL THREAD DIAMETER	2.000 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+1.8402/+1.8637 INCHES
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL	STEEL OVERALL
SECOND DIAMETER FROM HEAD	2.000 INCHES NOMINAL
SPECIAL FEATURES	4.500 IN. L X 1.000 IN. DIA END WITH 0.312 IN. W X 0.188 IN. D X 4.000 IN. L KEYWAY; NUT INCLUDED-DWG NO. 179496 1/4
THIRD DIAMETER FROM HEAD	1.730 INCHES NOMINAL
THREAD DIRECTION	LEFT-HAND
THREAD LENGTH	6.500 INCHES NOMINAL
THREAD QUANTITY PER INCH	4
THREAD SERIES DESIGNATOR	ACME

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