5306-00-006-4758, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-006-4758

Federal Supply Class:
5306

National Item Identification Number:
000064758

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:

6N2954	11083	CATERPILLAR INC
8L4183	11083	CATERPILLAR INC
8L4183-00	58312	MIL-TECH MFG INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	3.594 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.125 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	3.719 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.250 INCHES NOMINAL
HARDNESS RATING	20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.120 INCHES NOMINAL
HEAD DIAMETER	0.427 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
MATERIAL	STEEL COMP 1141 OR STEEL COMP 1144 OVERALL
NOMINAL THREAD DIAMETER	0.438 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.124 INCHES NOMINAL FIRST HOLE
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.500 INCHES MINIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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