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National Stock Number:
5305-01-387-6031
Federal Supply Class:
5305
National Item Identification Number:
013876031
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:
| 11913-7-26 | 59563 | REID PRODUCTS INC. | | HT4008-7-26 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4008-7-26 | 17419 | DEUTSCH CO THE | | HT4008-7-26 | 73197 | HI-SHEAR CORPORATION | | HT4008-7-26 | 80539 | SPS TECHNOLOGIES, LLC | | HT4008-7-26 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M496-7-26 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.599 INCHES NOMINAL | | FASTENER LENGTH | 2.209 INCHES MINIMUM AND | | 2.239 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.880 INCHES MINIMUM AND | | 0.890 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 | 0.4521 INCHES MINIMUM AND | | 0.4526 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.435 INCHES MINIMUM AND | | 1.455 INCHES MAXIMUM FIRST SHOULDER |
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