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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.
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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 |
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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 QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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