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National Stock Number:
5305-01-601-4263
Federal Supply Class:
5305
National Item Identification Number:
016014263
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:
| 90298A575 | 39428 | MCMASTER-CARR SUPPLY CO | | MC90298A575 | 1PN61 | DILLON AERO, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.437 INCHES NOMINAL | | FASTENER LENGTH | 0.750 INCHES NOMINAL | | MATERIAL | STEEL PROPERTY CLASS 18.8 OVERALL | | HARDNESS RATING | 55.0 ROCKWELL B MINIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT FILLISTER | | HEAD DIAMETER | 0.437 INCHES NOMINAL | | HEAD HEIGHT | 0.218 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER DIAMETER | 0.437 INCHES NOMINAL ALL SHOULDERS | | SHOULDER LENGTH | 0.437 INCHES NOMINAL ALL SHOULDERS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | TYPE 18-8 STAINLESS STEEL SHOULDER SCREW |
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