5306-01-389-8031, BOLT,MACHINE

National Stock Number:
5306-01-389-8031

Federal Supply Class:
5306

National Item Identification Number:
013898031

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:

1/4-20UNC-2AX1INLGTY1GR316	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	1.000 INCHES NOMINAL
MATERIAL	STEEL COMP 316 OVERALL
THREAD LENGTH	0.750 INCHES NOMINAL
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM-F-593 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
MINIMUM TENSILE STRENGTH	105000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	65000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.150 INCHES MINIMUM AND
	0.188 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.425 INCHES MINIMUM AND
	0.438 INCHES MAXIMUM
DEPARTURE FROM CITED DOCUMENT	AS MODOFIED BY MATERIAL
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND
	316 GRADE
SPEC/STD CONTROLLING DATA
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-DTL-1222
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	1/4-20UNC-2AX1INLGTY1GR316

Click here to Register for Free 30-day Trial