5306-01-311-7132, BOLT,INTERNAL WRENCHING

National Stock Number:
5306-01-311-7132

Federal Supply Class:
5306

National Item Identification Number:
013117132

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:

MS20008H-12

96906

MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
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
	0.837 INCHES MAXIMUM
FASTENER LENGTH	1.547 INCHES MINIMUM AND
	1.577 INCHES MAXIMUM
MATERIAL	STEEL COMP E4340 OR
	STEEL COMP 4140 OR
	STEEL COMP 8735 OR
	STEEL COMP 6150 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR
	MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR
	MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR
	MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 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
MINIMUM YIELD STRENGTH	95000 POUNDS PER SQUARE INCH
HEAD STYLE	BEVEL-CONICAL
HEAD DIAMETER	0.818 INCHES MINIMUM AND
	0.828 INCHES MAXIMUM
HEAD HEIGHT	0.490 INCHES MINIMUM AND
	0.510 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.3755 INCHES MINIMUM AND
	0.3785 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	ROUND INTERNAL HEXAGON
HOLE TYPE	DRILLED
HOLE QUANTITY	4
HOLE DIAMETER	0.055 INCHES MINIMUM AND
	0.060 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	63.0 MICROINCHES GRIP
	32.0 MICROINCHES THREADS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS20008H-12

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