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National Stock Number:
5305-01-102-7954
Federal Supply Class:
5305
National Item Identification Number:
011027954
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.
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Manufacturer Information:
| HT4016-4-3Y | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4016-4-3Y | 17446 | HUCK INTERNATIONAL, INC | | HT4016-4-3Y | 56878 | SPS TECHNOLOGIES, LLC | | HT4016-4-3Y | 73197 | HI-SHEAR CORPORATION | | HT4016-4-3Y | 80539 | SPS TECHNOLOGIES, LLC | | HT4016-4-3Y | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M506-4-3-1 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M506-4-3-1 | 60516 | WEST COAST AEROSPACE, INC. | | WC4011-4-3 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M506-4-3-1 | 76301 | THE BOEING COMPANY | | HT4016-4-3Y | 97928 | HUCK INTL INC | | HT4016-4-3Y | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4016-4-3Y | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.371 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | FASTENER LENGTH | 0.569 INCHES MINIMUM AND | | 0.616 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | OVAL COUNTERSUNK | | HEAD DIAMETER | 0.420 INCHES MINIMUM AND | | 0.426 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.2802 INCHES MINIMUM AND | | 0.2807 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.104 INCHES MINIMUM AND | | 0.128 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | INTERNAL HEXAGON SOCKET IN THREADED END 0.095 IN. MIN 0.097 IN. MAX WIDTH ACROSS FLATS |
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