5306-01-319-0381, BOLT,EXTERNALLY RELIEVED BODY

5306-01-319-0382 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-319-0381

Federal Supply Class:
5306

National Item Identification Number:
013190381

Description:
BOLT,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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Manufacturer Information:

00-016345	75078	JACOBS MFG CO THE
21183	75078	JACOBS MFG CO THE

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	80.8 MILLIMETERS NOMINAL
EXTENDED WASHER DIAMETER	20.32 MILLIMETERS MINIMUM AND 21.59 MILLIMETERS MAXIMUM
EXTENDED WASHER THICKNESS	5.03 MILLIMETERS MINIMUM AND 5.40 MILLIMETERS MAXIMUM
EXTERNAL THREAD TOLERANCE CLASS	6G
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	109.2 MILLIMETERS MINIMUM AND 110.8 MILLIMETERS MAXIMUM
FIRST DIAMETER FROM HEAD	10.734 MILLIMETERS MINIMUM AND 10.829 MILLIMETERS MAXIMUM
HEAD HEIGHT	11.73 MILLIMETERS MINIMUM AND 12.00 MILLIMETERS MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
MATERIAL	STEEL PROPERTY CLASS 12.9 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	12.0 MILLIMETERS
WIDTH BETWEEN FLATS	11.93 MILLIMETERS MINIMUM AND 12.05 MILLIMETERS MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	30.0 MILLIMETERS MINIMUM
THREAD SERIES DESIGNATOR	M
THREAD PITCH IN MILLIMETERS	1.75

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