5306-01-504-6374, BOLT,SHEAR

National Stock Number:
5306-01-504-6374

Federal Supply Class:
5306

National Item Identification Number:
015046374

Description:
BOLT,SHEAR

Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.

Manufacturer Information:

NAS628-8

29372

HOWMET GLOBAL FASTENING SYSTEMS INC.

Techincal Specification:

EXTENDED WASHER DIAMETER	0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.103 INCHES MINIMUM AND 0.133 INCHES MAXIMUM
FASTENER LENGTH	1.226 INCHES MINIMUM AND 1.256 INCHES MAXIMUM
GRIP LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
GRIP DIAMETER	0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT,TWELVE POINT,STEEL,EXTERNAL WRENCHING
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.5000 INCHES
WIDTH BETWEEN FLATS	0.556 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.741 INCHES NOMINAL
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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