5306-00-550-3697, BOLT,MACHINE

National Stock Number:
5306-00-550-3697

Federal Supply Class:
5306

National Item Identification Number:
005503697

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-B-575	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FF-B-575 TY1	80244	GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE
MS35355-211	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	11.820 INCHES MINIMUM AND 12.140 INCHES MAXIMUM
FEATURES PROVIDED	UNFINISHED HEAD
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.476 INCHES MINIMUM AND 0.524 INCHES MAXIMUM
HEAD STYLE	SQUARE
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	55000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.750 INCHES
WIDTH BETWEEN FLATS	1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY2 CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.000 INCHES MINIMUM
THREAD QUANTITY PER INCH	10
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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