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National Stock Number:
5306-01-341-4690
Federal Supply Class:
5306
National Item Identification Number:
013414690
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:
| BACB30MT8T50 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM | | FASTENER LENGTH | 3.923 INCHES MINIMUM AND 3.953 INCHES MAXIMUM | | GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | | GRIP LENGTH | 1.3115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | WIDTH BETWEEN FLATS | 0.637 INCHES MINIMUM AND 0.651 INCHES MAXIMUM | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.881 INCHES MINIMUM AND 0.931 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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