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National Stock Number:
5305-01-416-7381
Federal Supply Class:
5305
National Item Identification Number:
014167381
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:
| 3308059-1 | 99251 | MISSION SYSTEMS DAVENPORT INC. | | 67503-SS-1 | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.344 INCHES NOMINAL | | HEAD DIAMETER | 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM | | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | SPECIAL FEATURES | NON-MAGNETIC; THREADS UNDERCUT FOR RELIEF, 0.036 IN. WIDE X 0.086 IN. DIA.; SHOULDER UNDERCUT FOR RELIEF, 0.031 IN. WIDE X 0.114 IN. DIA. | | WIDTH ACROSS FLATS | 0.078 INCHES NOMINAL | | THREAD LENGTH | 0.120 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 40 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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