5306-00-776-7440, BOLT,MACHINE

5805-00-776-7438 CASE,ELECTRONIC COMMUNICATIONS E

National Stock Number:
5306-00-776-7440

Federal Supply Class:
5306

National Item Identification Number:
007767440

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:

401367	02978	RENK AMERICA LLC
7767440	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.650 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8640 OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.074 INCHES NOMINAL FIRST HOLE
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.585 INCHES MINIMUM AND 0.675 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24
WIDTH BETWEEN FLATS	0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM

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