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National Stock Number:
5305-01-501-3092
Federal Supply Class:
5305
National Item Identification Number:
015013092
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:
| B1833B100020N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | M | | NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS | | THREAD PITCH IN MILLIMETERS | 1.25 | | EXTERNAL THREAD TOLERANCE CLASS | 4H6H | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 12.75 MILLIMETERS MINIMUM AND | | 13.25 MILLIMETERS MAXIMUM | | FASTENER LENGTH | 33.0 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTMB633,TY2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 15.73 MILLIMETERS MINIMUM AND | | 16.00 MILLIMETERS MAXIMUM | | HEAD HEIGHT | 6.78 MILLIMETERS MINIMUM AND | | 7.00 MILLIMETERS MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 5.0 MILLIMETERS NOMINAL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 9.95 MILLIMETERS MINIMUM AND | | 9.99 MILLIMETERS MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 20.0 MILLIMETERS NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | CARBON CONTENT OF ALLOY STEEL IS 0.31 TO 0.48 PERCENT |
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