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National Stock Number:
5305-01-617-4823
Federal Supply Class:
5305
National Item Identification Number:
016174823
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:
| MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | SHOULDER SHAPE | SQUARE OVERALL | | SHOULDER WIDTH ACROSS FLATS | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM OVERALL | | SHOULDER LENGTH | 4.495 INCHES MINIMUM AND 4.505 INCHES MAXIMUM OVERALL | | WIDTH ACROSS FLATS | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC | | FASTENER LENGTH | 4.750 INCHES NOMINAL | | HARDNESS RATING | 55.0 ROCKWELL B MINIMUM OVERALL | | HEAD DIAMETER | 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM | | HEAD HEIGHT | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD STYLE | FLAT FILLISTER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP,SOCKET HEAD | | PROPRIETARY CHARACTERISTICS | PACS |
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