5305-01-032-7044 SCREW,CAP,SOCKET HEAD Index 5310-01-032-7048 NUT,PLAIN,HEXAGON

National Stock Number:
5305-01-032-7045

Federal Supply Class:
5305

National Item Identification Number:
010327045

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
HT4049-6D3106950HOWMET GLOBAL FASTENING SYSTEMS INC
HT4049-6D3117446HUCK INTERNATIONAL, INC
HT4049-6D3156878SPS TECHNOLOGIES, LLC
HT4049-6D3173197HI-SHEAR CORPORATION
HT4049-6D3180539SPS TECHNOLOGIES, LLC
HT4049-6D3192215HOWMET GLOBAL FASTENING SYSTEMS INC
HT4049-6D3197928HUCK INTL INC
HT4049-6D31K5673SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
HT4049-6D31L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M714-6D3158998FASTENER INNOVATION TECHNOLOGY, INC.
ST3M714-6D3160516WEST COAST AEROSPACE, INC.
ST3M714-6D3176301THE BOEING COMPANY
WC4049-6D3160516WEST COAST AEROSPACE, INC.


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM FIRST HOLE
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH2.314 INCHES MINIMUM AND 2.344 INCHES MAXIMUM
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM
HEAD DIAMETER0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATION23-112,MCDONNEL DOUGLAS CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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