5305-01-274-6080, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-274-6080

Federal Supply Class:
5305

National Item Identification Number:
012746080

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:

11873-4D17-5	59563	REID PRODUCTS INC.
3M707-4D17-5	58998	FASTENER INNOVATION TECHNOLOGY, INC.
HT4041-4D17-5	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
3M707-4D17-5	76301	THE BOEING COMPANY
3M707-4D17-5	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
3M707-4D17-5	K5673	SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
HT4041-4D17-5	17446	HUCK INTERNATIONAL, INC
HT4041-4D17-5	56878	SPS TECHNOLOGIES, LLC
WC4041-4D17-5	60516	WEST COAST AEROSPACE, INC.
HT4041-4D17-5	73197	HI-SHEAR CORPORATION
HT4041-4D17-5	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
HT4041-4D17-5	97928	HUCK INTL INC
HT4041-4D17-5	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC

Techincal Specification:

COLOR	WHITE HEAD
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.238 INCHES MINIMUM AND 1.278 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.359 INCHES MINIMUM AND 1.389 INCHES MAXIMUM
GRIP DIAMETER	0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH	1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM
HEAD DIAMETER	0.389 INCHES MINIMUM AND 0.394 INCHES MAXIMUM
HEAD HEIGHT	0.015 INCHES MAXIMUM
HEAD STYLE	FILLISTER COUNTERSUNK
INTERNAL DRIVE STYLE	HIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	COLOR NO. 37875 PER FED-STD-595
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	0.241 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	28

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