5306-00-515-8294, BOLT,MACHINE

National Stock Number:
5306-00-515-8294

Federal Supply Class:
5306

National Item Identification Number:
005158294

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

2167521	23862	MILITARY VEHICLES OPN GENERAL MOTORS TRUCK AND BUS GROUP MS 2603-02
2167521	24617	GENERAL MOTORS CORP
N1158	06721	HALDEX BRAKE PRODUCTS CORPORATION
7350490	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
2167521	7X677	GENERAL MOTORS LLC

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	1.656 INCHES NOMINAL
MATERIAL	STEEL COMP 3130 OR
	STEEL COMP 8637 OVERALL
THREAD LENGTH	0.500 INCHES MINIMUM
HEAD STYLE	DEE CHAMFER
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD 1ST MATERIAL RESPONSE OR
	AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	35.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.380 INCHES NOMINAL
HEAD HEIGHT	0.125 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT	0.123 INCHES MINIMUM AND
	0.128 INCHES MAXIMUM
GRIP LENGTH	0.750 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.531 INCHES MINIMUM AND
	1.541 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
SPECIAL FEATURES	BOTH ENDS OF DRILLED HOLE COUNTERSUNK 90 DEG TO 0.109 IN. DIA AND HEAD UNDERCUT 0.240 IN. MIN 0.244 IN. MAX DIA. 0.094 IN. LG.

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