5305-01-268-9782 SCREW,TAPPING Index 5305-01-268-9784 SCREW,CAP,SOCKET HEAD

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:
20-057-5-20D06725SPS TECHNOLOGIES, LLC
20-057-5-20D06950HOWMET GLOBAL FASTENING SYSTEMS INC
20-057-5-20D0K6Z0SATURN FASTENERS INC
20-057-5-20D0ZC92HEARTLAND PRECISION FASTENERS INC
20-057-5-20D17446HUCK INTERNATIONAL, INC
20-057-5-20D1EM77B & B SPECIALTIES INC
20-057-5-20D27624SPS TECHNOLOGIES LLC
20-057-5-20D56878SPS TECHNOLOGIES, LLC
20-057-5-20D62384LFC INDUSTRIES INC.
20-057-5-20D80539SPS TECHNOLOGIES, LLC
20-057-5-20D92215HOWMET GLOBAL FASTENING SYSTEMS INC
20-057-5-20D97499BELL TEXTRON INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.513 INCHES MINIMUM AND 1.563 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.141 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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