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National Stock Number:
5305-01-576-4495
Federal Supply Class:
5305
National Item Identification Number:
015764495
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:
| 97345A583 | 3A054 | MCMASTER-CARR SUPPLY CO | | STR60251C15 | 4TU30 | ACCURATE MANUFACTURED PRODUCTS GROUP INC | | STR60251C15 | Z5B11 | MILSPEC SERVICES PTY LIMITED |
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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 | 0.438 INCHES NOMINAL | | FASTENER LENGTH | 0.995 INCHES MINIMUM AND | | 1.005 INCHES MAXIMUM | | MATERIAL | STEEL COMP 316 OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.438 INCHES NOMINAL | | HEAD HEIGHT | 0.219 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | | SHOULDER SHAPE | ROUND OVERALL | | SHOULDER DIAMETER | 0.312 INCHES NOMINAL ALL SHOULDERS | | SHOULDER LENGTH | 1.000 INCHES NOMINAL ALL SHOULDERS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | TYPE 316 STAINLESS STEEL SHOULDER SCREW |
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