5306-01-148-7456, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-148-7456

Federal Supply Class:
5306

National Item Identification Number:
011487456

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:

14077193	11862	GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
14077193	7E548	WILSON-GARNER CO
14077193	7X677	GENERAL MOTORS LLC
14077194	7X677	GENERAL MOTORS LLC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	69.0 MILLIMETERS MINIMUM AND 75.5 MILLIMETERS MAXIMUM
EXTENDED WASHER DIAMETER	22.3 MILLIMETERS MINIMUM AND 22.9 MILLIMETERS MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
EXTENDED WASHER THICKNESS	2.0 MILLIMETERS NOMINAL
FASTENER LENGTH	96.50 MILLIMETERS MINIMUM AND 97.50 MILLIMETERS MAXIMUM
FIRST DIAMETER FROM HEAD	10.7 MILLIMETERS MINIMUM AND 11.2 MILLIMETERS MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	11.4 MILLIMETERS MINIMUM AND 13.2 MILLIMETERS MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4037 OVERALL
NOMINAL THREAD DIAMETER	12.0 MILLIMETERS
WIDTH BETWEEN FLATS	17.67 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	22.0 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM
THREAD PITCH IN MILLIMETERS	1.75
THREAD SERIES DESIGNATOR	M

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