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National Stock Number:
5305-01-293-0983
Federal Supply Class:
5305
National Item Identification Number:
012930983
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:
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Techincal Specification:
| FASTENER LENGTH | 0.895 INCHES MINIMUM AND 0.900 INCHES MAXIMUM | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD DIAMETER | 0.734 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.297 INCHES MINIMUM SECOND SHOULDER AND 0.302 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER DIAMETER | 0.490 INCHES MINIMUM FIRST SHOULDER AND 0.495 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.100 INCHES MINIMUM FIRST SHOULDER AND 0.105 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.250 INCHES MINIMUM SECOND SHOULDER AND 0.255 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER SHAPE | ROUND SECOND SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | EXTERNALLY RELIEVED BODY 0.175 IN. DIA; 0.210 IN. LG | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.440 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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