5305-12-300-8548 SCREW,EXTERNALLY RELIEVED BODY Index 5305-12-300-8714 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-12-300-8549

Federal Supply Class:
5305

National Item Identification Number:
123008549

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:
4039900601D8046DAIMLER AG


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER8,0 MILLIMETERS NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER13,0 MILLIMETERS NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER116,0 MILLIMETERS NOMINAL
EXTENDED WASHER DIAMETER24,0 MILLIMETERS NOMINAL
EXTENDED WASHER THICKNESS4,0 MILLIMETERS NOMINAL
EXTERNAL THREAD TOLERANCE CLASS4 KLEIN H
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FASTENER LENGTH144,0 MILLIMETERS NOMINAL
FIRST DIAMETER FROM HEAD12,5 MILLIMETERS NOMINAL
HARDNESS RATING280 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 370 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM OVERALL
HEAD HEIGHT14,0 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATIONDIN ISO898TEIL1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
III PURCHASE DESCRIPTION IDENTIFICATIOND8046-4039900601
MINIMUM TENSILE STRENGTH1000 NEWTONS PER SQUARE MILLIMETER
NOMINAL THREAD DIAMETER15,0 MILLIMETERS
SECOND DIAMETER FROM HEAD15,2 MILLIMETERS NOMINAL
WIDTH BETWEEN FLATS17,0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDBL9400.20 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
THIRD DIAMETER FROM HEAD12,0 MILLIMETERS NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH28,0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS2,0


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