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National Stock Number:
5305-01-580-4209
Federal Supply Class:
5305
National Item Identification Number:
015804209
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:
| MS51576-15 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 1.403 INCHES MINIMUM AND 1.471 INCHES MAXIMUM | | HEAD DIAMETER | 0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM | | HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW SHOULDER SOCKET HEAD HEXAGON CORROSION RESISTANT STEEL | | SHOULDER DIAMETER | 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM FIRST SHOULDER | | WIDTH ACROSS FLATS | 0.094 INCHES NOMINAL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.156 INCHES MINIMUM AND 0.218 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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