5305-12-300-8549 SCREW,EXTERNALLY RELIEVED BODY Index 5340-12-300-8761 GRIP,HANDLE

National Stock Number:
5305-12-300-8714

Federal Supply Class:
5305

National Item Identification Number:
123008714

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:
4039900504D8046DAIMLER AG


Techincal Specification:
EXTENDED WASHER DIAMETER24.0 MILLIMETERS NOMINAL
EXTENDED WASHER THICKNESS2.0 MILLIMETERS NOMINAL
FASTENER LENGTH54.0 MILLIMETERS NOMINAL
GRIP DIAMETER12.0 MILLIMETERS NOMINAL
GRIP LENGTH21.0 MILLIMETERS NOMINAL
HARDNESS RATING330 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM OVERALL AND 440 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM OVERALL
HEAD HEIGHT8.0 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
SPECIAL FEATURESKEGEL ZWISCHEN GEWINDE UND KLEMMTEIL
WIDTH BETWEEN FLATS17.0 MILLIMETERS NOMINAL
STRENGTH GRADE DESIGNATION12.9
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH25.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS1.5


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