5306-99-606-6474, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-99-606-6474

Federal Supply Class:
5306

National Item Identification Number:
996066474

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:

3M1103-4H4	73197	HI-SHEAR CORPORATION
3M1103-4H4	80539	SPS TECHNOLOGIES, LLC
3M1103-4H4	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
B426733	K0378	ROLLS-ROYCE PLC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.180 INCHES MAXIMUM AND 0.170 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.310 INCHES NOMINAL
FASTENER LENGTH	0.600 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.250 INCHES MAXIMUM AND 0.246 INCHES MINIMUM
HEAD HEIGHT	0.150 INCHES MAXIMUM AND 0.140 INCHES MINIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	BS S130 CONDITION D NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR ROLLS ROYCE LTD MS556 S/CNT MFR REF SINGLE MATERIAL RESPONSE
MATERIAL	STEEL OR STEEL CORROSION RESISTING
MINIMUM TENSILE STRENGTH	78400 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.195 INCHES MAXIMUM AND 0.185 INCHES MINIMUM
SPECIAL FEATURES	ONE DRILLED HOLE IN HEAD
WIDTH BETWEEN FLATS	0.438 INCHES MAXIMUM AND 0.431 INCHES MINIMUM
SURFACE TREATMENT	SILVER OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.290 INCHES NOMINAL
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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