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National Stock Number:
5306-00-436-4395
Federal Supply Class:
5306
National Item Identification Number:
004364395
Description:
BOLT,CLOSE TOLERANCE
Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
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Manufacturer Information:
| 561132 | 12603 | CLARK EQUIPMENT CO | | 561132 | 40152 | VME AMERICAS INC SUB OF VME GROUP N V | | 561132 | 77237 | DANA OFF HIGHWAY PRODUCTS, LLC |
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Techincal Specification:
| FASTENER LENGTH | 6.750 INCHES MINIMUM AND 6.781 INCHES MAXIMUM | | GRIP DIAMETER | 1.4989 INCHES MINIMUM AND 1.4995 INCHES MAXIMUM | | GRIP LENGTH | 4.344 INCHES MINIMUM AND 4.375 INCHES MAXIMUM | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.562 INCHES MINIMUM AND 0.593 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 1.375 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TYPE C,FSCM 12603 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.375 INCHES MINIMUM AND 2.437 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 12 | | THREAD SERIES DESIGNATOR | UNF | | WIDTH BETWEEN FLATS | 2.000 INCHES NOMINAL |
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