5306-01-268-9783, BOLT,SHEAR

National Stock Number:
5306-01-268-9783

Federal Supply Class:
5306

National Item Identification Number:
012689783

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:

20-057-5-20D	06725	SPS TECHNOLOGIES, LLC
20-057-5-20D	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
20-057-5-20D	0K6Z0	SATURN FASTENERS INC
20-057-5-20D	0ZC92	HEARTLAND PRECISION FASTENERS INC
20-057-5-20D	17446	HUCK INTERNATIONAL, INC
20-057-5-20D	1EM77	B & B SPECIALTIES INC
20-057-5-20D	27624	SPS TECHNOLOGIES LLC
20-057-5-20D	56878	SPS TECHNOLOGIES, LLC
20-057-5-20D	62384	LFC INDUSTRIES INC.
20-057-5-20D	80539	SPS TECHNOLOGIES, LLC
20-057-5-20D	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
20-057-5-20D	97499	BELL TEXTRON INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.513 INCHES MINIMUM AND 1.563 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM
GRIP DIAMETER	0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.141 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	24

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