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National Stock Number:
5306-00-285-9910
Federal Supply Class:
5306
National Item Identification Number:
002859910
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:
| 74328-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | 74328-4-8 | 80539 | SPS TECHNOLOGIES, LLC | | AIC752-4-8 | 06725 | SPS TECHNOLOGIES, LLC | | BM3326-4-8 | 17446 | HUCK INTERNATIONAL, INC | | GS1030-4-8 | 1EM77 | B & B SPECIALTIES INC | | BM3326-4-8 | 97928 | HUCK INTL INC | | S371-4-8 | 17446 | HUCK INTERNATIONAL, INC | | PBF23T4P8 | 27624 | SPS TECHNOLOGIES LLC | | S11-1059-4-8 | 57928 | SONIC INDUSTRIES, INC. | | MB84-4-8 | 73197 | HI-SHEAR CORPORATION | | S371-4-8 | 97928 | HUCK INTL INC | | MB84-4-8 | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | MB84-4-8 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | MB84-4-8 | R1120 | SATAIR A/S | | VAL23033-4-8 | 06710 | VALLEY-TODECO, INC. | | VS3060-4-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M571-4-8 | 0JV78 | J M PRECISION INC | | ST3M571-4-8 | 0PTK6 | SPS TECHNOLOGIES INC | | ST3M571-4-8 | 27624 | SPS TECHNOLOGIES LLC | | ST3M571-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M571-4-8 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M571-4-8 | 59563 | REID PRODUCTS INC. | | ST3M571-4-8 | 76301 | THE BOEING COMPANY | | VS3060-4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS3060-4-8 | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.443 INCHES MINIMUM AND | | 0.493 INCHES MAXIMUM | | FASTENER LENGTH | 0.953 INCHES MINIMUM AND | | 0.983 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.290 INCHES MINIMUM AND | | 0.310 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND | | 0.313 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.059 INCHES MINIMUM AND | | 0.079 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND | | 0.2495 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 76301 | | DESIGN CONTROL REFERENCE | ST3M571-4-8 |
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