5306-00-227-0946, BOLT,MACHINE

National Stock Number:
5306-00-227-0946

Federal Supply Class:
5306

National Item Identification Number:
002270946

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:

FF-S-85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
M1222RN12C248SHNN	81205	THE BOEING COMPANY
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:

DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY MATERIAL
FASTENER LENGTH	3.000 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.455 INCHES MINIMUM AND 0.524 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM F593 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 410 OR STEEL COMP 416 OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.750 INCHES
NONDEFINITIVE SPEC/STD DATA	1 TYPE
SPECIFICATION/STANDARD DATA	81349--1222RN12C248SHNN GOVERNMENT SPECIFICATION
WIDTH BETWEEN FLATS	1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.750 INCHES MINIMUM
THREAD QUANTITY PER INCH	10
THREAD SERIES DESIGNATOR	UNC

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