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National Stock Number:
5305-01-579-8773
Federal Supply Class:
5305
National Item Identification Number:
015798773
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 | 1.250 INCHES NOMINAL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.562 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 416 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SHOULDER SCREW,HEX SOCKET HEAD | | SHOULDER DIAMETER | 0.374 INCHES NOMINAL OVERALL | | SHOULDER SHAPE | ROUND OVERALL | | SHOULDER LENGTH | 0.500 INCHES NOMINAL OVERALL | | SPECIAL FEATURES | THREAD TYPE: A-EXTERNAL;416 STAINLESS STEEL | | WIDTH ACROSS FLATS | 0.187 INCHES NOMINAL | | THREAD CLASS | 2 | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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