5305-01-068-2317 THUMBSCREW Index 5306-01-068-2320 BOLT,SHEAR

National Stock Number:
5306-01-068-2319

Federal Supply Class:
5306

National Item Identification Number:
010682319

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:
MS21250H1002496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
FASTENER LENGTH2.409 INCHES MINIMUM AND 2.429 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM
GRIP LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HOLE QUANTITY4
HOLE TYPEDRILLED
MATERIALSTEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
WIDTH BETWEEN FLATS0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.899 INCHES MINIMUM AND 0.939 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH18


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