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National Stock Number:
5305-00-883-5894
Federal Supply Class:
5305
National Item Identification Number:
008835894
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:
| 6784204 | 24617 | GENERAL MOTORS CORP | | 6784204 | 29953 | SPACE AGE ENGINEERING INC | | 6784204 | 57928 | SONIC INDUSTRIES, INC. | | 6784204 | 63005 | ROLLS-ROYCE CORPORATION | | 6784204 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 1.257 INCHES NOMINAL | | HARDNESS RATING | 60.0 ROCKWELL C NOMINAL OVERALL | | HEAD DIAMETER | 0.438 INCHES NOMINAL | | HEAD HEIGHT | 0.172 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL COMP 8617 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE | | SHOULDER DIAMETER | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.006 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | THREAD LENGTH | 0.175 INCHES MINIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 28 |
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