5306-01-015-8775 BOLT,CLOSE TOLERANCE Index 5305-01-015-8777 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-015-8776

Federal Supply Class:
5305

National Item Identification Number:
010158776

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:
S5008-4-1006950HOWMET GLOBAL FASTENING SYSTEMS INC
S5008-4-1017446HUCK INTERNATIONAL, INC
S5008-4-1026512NORTHROP GRUMMAN SYSTEMS CORPORATION
S5008-4-1056878SPS TECHNOLOGIES, LLC
S5008-4-1073197HI-SHEAR CORPORATION
S5008-4-1079RG9NORTHROP GRUMMAN SYSTEMS CORPORATION
S5008-4-1092215HOWMET GLOBAL FASTENING SYSTEMS INC
S5008-4-1097928HUCK INTL INC
S5008-4-10L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.064 INCHES MINIMUM AND 1.094 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
HEAD DIAMETER0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM
HEAD HEIGHT0.015 INCHES MAXIMUM
HEAD STYLEFILLISTER COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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