5306-01-492-8476, BOLT,INTERNAL WRENCHING

National Stock Number:
5306-01-492-8476

Federal Supply Class:
5306

National Item Identification Number:
014928476

Description:
BOLT,INTERNAL WRENCHING

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.

Manufacturer Information:

MS20008-16	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS20008-16	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.787 INCHES MINIMUM AND
	0.827 INCHES MAXIMUM
FASTENER LENGTH	1.787 INCHES MINIMUM AND
	1.827 INCHES MAXIMUM
MATERIAL	STEEL COMP E4340 OR
	STEEL COMP 4340 OR
	STEEL COMP 4140 OR
	STEEL COMP 8740 OR
	STEEL COMP 8735 OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND
	40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
HEAD STYLE	BEVEL-CONICAL
HEAD DIAMETER	0.818 INCHES MINIMUM AND
	0.828 INCHES MAXIMUM
HEAD HEIGHT	0.500 INCHES NOMINAL
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.375 INCHES NOMINAL

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