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National Stock Number:
5305-01-620-5623
Federal Supply Class:
5305
National Item Identification Number:
016205623
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:
| 93996A831 | 3A054 | MCMASTER-CARR SUPPLY CO | | PAT4426 | 3BFK5 | RICHARD MANNO & COMPANY INC. |
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Techincal Specification:
| INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL | | LOCKING FEATURE | PATCH LOCKING FEATURE | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER DIAMETER | 0.249 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM ALL SHOULDERS | | SHOULDER LENGTH | 0.125 INCHES MINIMUM AND | | 0.127 INCHES MAXIMUM ALL SHOULDERS | | SPECIAL FEATURES | SCREW MAY BE MILDLY MAGNETIC;PATCH TO WITHSTAND TEMPERATURES FROM -70DEGREES TO +250DEGREES | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.1900 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES NOMINAL | | FASTENER LENGTH | 0.375 INCHES NOMINAL | | MATERIAL | PLASTIC NYLON LOCKING FEATURE | | STEEL PROPERTY CLASS 18.8 FASTENER | | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 105000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.1875 INCHES NOMINAL |
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