5305-99-788-2689, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-99-788-2689

Federal Supply Class:
5305

National Item Identification Number:
997882689

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:

100355-1000-009	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH
100355-1000-009	K1806	MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT)

Techincal Specification:

STRENGTH GRADE DESIGNATION	ERR-030
THREAD CLASS	6G
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	9.34 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATOR	ISO M
THREAD PITCH IN MILLIMETERS	1.25
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	32.50 MILLIMETERS NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	22.75 MILLIMETERS MINIMUM AND 23.25 MILLIMETERS MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	26.66 MILLIMETERS NOMINAL
FASTENER LENGTH	36.0 MILLIMETERS NOMINAL
FIRST DIAMETER FROM HEAD	9.90 MILLIMETERS MINIMUM AND 9.96 MILLIMETERS MAXIMUM
HEAD DIAMETER	16.75 MILLIMETERS MINIMUM AND 17.25 MILLIMETERS MAXIMUM
HEAD HEIGHT	4.75 MILLIMETERS MINIMUM AND 5.25 MILLIMETERS MAXIMUM
HEAD STYLE	FLAT FILLISTER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	BS 970 PART 4 GRADE 316516 (WITHDRAWN) NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE
MATERIAL	STEEL OVERALL
POINT LENGTH	1.25 MILLIMETERS MINIMUM AND 1.75 MILLIMETERS MAXIMUM
POINT STYLE	FLAT
POINT CHAMFER ANGLE	44.00 DEGREES NOMINAL AND 46.00 DEGREES NOMINAL
NOMINAL THREAD DIAMETER	8.0 MILLIMETERS
SECOND DIAMETER FROM HEAD	6.00 MILLIMETERS MINIMUM AND 6.22 MILLIMETERS MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	2.50 MILLIMETERS MINIMUM OVERALL AND 2.75 MILLIMETERS MAXIMUM OVERALL

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