5306-01-266-9206 BOLT,SHEAR Index 5306-01-266-9208 BOLT,SHEAR

National Stock Number:
5306-01-266-9207

Federal Supply Class:
5306

National Item Identification Number:
012669207

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:
BACB30ST7-3116258SPACE-LOK, INC.
BACB30ST7-3129372HOWMET GLOBAL FASTENING SYSTEMS INC.
BACB30ST7-3156878SPS TECHNOLOGIES, LLC
BACB30ST7-3180539SPS TECHNOLOGIES, LLC
BACB30ST7-3181205THE BOEING COMPANY
BACB30ST7-3184256AVIBANK MFG., INC.
BACB30ST7-3192215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.258 INCHES MINIMUM AND 2.316 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH2.801 INCHES MINIMUM AND 2.831 INCHES MAXIMUM
GRIP DIAMETER0.4363 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
GRIP LENGTH1.923 INCHES MINIMUM AND 1.953 INCHES MAXIMUM
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM FASTENER
HEAD HEIGHT0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
HEAD STYLEDISHED HEXAGON
MATERIALSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 FASTENER
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.438 INCHES
SPECIAL FEATURESASSEMBLY AREA EXTENDED AT THREADED END; 0.402 IN. MIN AND 0.412 IN. MAX LENGTH 0.369 IN. MIN AND 0.372 IN MAX DIA; ASSEMBLY CONTAINS RETAINER PAWL,MATT CRES PER AMS 5643,ROCKWELL HARDNESS 35.0 MIN AND 39.0 MAX; FINISH BLAST PER BAC 5951,PASSIVATE PER QQ-P-35,DRY FILM LUBE PER MIL-L-8937; SPRING MATT CRES PER AMS 5673,ROCKWELL HARDNESS 48.0 MIN,FINISH PASSIVATE PER QQ-P-35; PIN AND PLUG MATT 303 CRES PER ASTM A582,FINISH PASSIVATE PER QQ-P-35
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENTCADMIUM AND CHROMATE FASTENER
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.466 INCHES MINIMUM AND 0.476 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNJF


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