5306-01-310-2346, BOLT,MACHINE

National Stock Number:
5306-01-310-2346

Federal Supply Class:
5306

National Item Identification Number:
013102346

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:

0.875-9UNC-2AX3 IN. LG, STL	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
M1222B2N14C248GANN	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-DTL-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	2.860 INCHES MINIMUM AND
	3.100 INCHES MAXIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.875 INCHES
THREAD QUANTITY PER INCH	9
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A193 ASSN STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND
	34.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.578 INCHES NOMINAL
WIDTH BETWEEN FLATS	1.438 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
NONDEFINITIVE SPEC/STD DATA	3 TYPE AND
	B7 GRADE AND
	HARDEN AND TEMPERED CONDITION
PART NAME ASSIGNED BY CONTROLLING AGENCY	HEAVY HEX BOLT
SPEC/STD CONTROLLING DATA
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-DTL-1222
MANUFACTURERS CODE	81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	M1222B2N14C248GANN

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