5305-01-218-1440 SCREW,SHOULDER Index 5305-01-218-1442 SCREW,SHOULDER

National Stock Number:
5305-01-218-1441

Federal Supply Class:
5305

National Item Identification Number:
012181441

Description:
SCREW,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
HT4060V4-7AS06950HOWMET GLOBAL FASTENING SYSTEMS INC
HT4060V4-7AS17446HUCK INTERNATIONAL, INC
HT4060V4-7AS73197HI-SHEAR CORPORATION
HT4060V4-7AS80539SPS TECHNOLOGIES, LLC
HT4060V4-7AS92215HOWMET GLOBAL FASTENING SYSTEMS INC
HT4060V4-7AS97928HUCK INTL INC
HT4060V4-7ASL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M851V4-7AS76301THE BOEING COMPANY
ST3M851V4-7AS92215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH0.890 INCHES MINIMUM AND 0.937 INCHES MAXIMUM
HEAD DIAMETER0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY UNS R56400 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SHOULDER DIAMETER0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
SPECIAL FEATURESFURNISHED WITH ONE O RING
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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