5305-01-163-0586 SCREW,CAP,HEXAGON HEAD Index 5306-01-163-0588 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-163-0587

Federal Supply Class:
5306

National Item Identification Number:
011630587

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.


Manufacturer Information:
122895-4-780539SPS TECHNOLOGIES, LLC
AIC687-4-706725SPS TECHNOLOGIES, LLC
MB154-4-773197HI-SHEAR CORPORATION
MB154-4-7L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
PBF1265-4-727624SPS TECHNOLOGIES LLC
S406-4-717446HUCK INTERNATIONAL, INC
S406-4-797928HUCK INTL INC
ST3M744-4-706950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M744-4-776301THE BOEING COMPANY
ST3M744-4-792215HOWMET GLOBAL FASTENING SYSTEMS INC
VCG0001-4-706710VALLEY-TODECO, INC.
VS3174-4-706950HOWMET GLOBAL FASTENING SYSTEMS INC
VS3174-4-792215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH0.744 INCHES MINIMUM AND 0.764 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
HEAD HEIGHT0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM
HEAD MINOR DIAMETER0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.296 INCHES MINIMUM AND 0.336 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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