5305-99-767-5019, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-99-767-5019

Federal Supply Class:
5305

National Item Identification Number:
997675019

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:

612/2/46178	K1156	BAE SYSTEMS INTEGRATED SYSTEM TECHNOLOGIES LTD
612/2/46178	K2523	EATON LIMITED
612/2/46178	K6036	G E C MARCONI DEFENCE SYSTEMS LTD

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	4.7 MILLIMETERS MINIMUM AND 5.3 MILLIMETERS MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	22.5 MILLIMETERS NOMINAL
EXTERNAL THREAD TOLERANCE CLASS	6G
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	27.2 MILLIMETERS MINIMUM AND 27.8 MILLIMETERS MAXIMUM
FIRST DIAMETER FROM HEAD	3.0 MILLIMETERS NOMINAL
HEAD DIAMETER	5.7 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM
HEAD HEIGHT	1.70 MILLIMETERS MINIMUM AND 1.80 MILLIMETERS MAXIMUM
HEAD STYLE	ERR-090
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	3.0 MILLIMETERS
SECOND DIAMETER FROM HEAD	1.9 MILLIMETERS MINIMUM AND 2.1 MILLIMETERS MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	4.7 MILLIMETERS MINIMUM AND 5.3 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATOR	ISO M
THREAD PITCH IN MILLIMETERS	0.5

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