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National Stock Number:
5305-00-324-8211
Federal Supply Class:
5305
National Item Identification Number:
003248211
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:
| 1391-1534 | 11871 | RECON/OPTICAL, INC. | | 1391-1534 | 80294 | BOURNS INSTRUMENTS INC |
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Techincal Specification:
| FASTENER LENGTH | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM | | HEAD DIAMETER | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM | | HEAD HEIGHT | 0.062 INCHES MINIMUM AND 0.126 INCHES MAXIMUM | | HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | SHOULDER DIAMETER | 0.124 INCHES MINIMUM AND 0.125 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | HOLE 0.035 IN. MIN 0.040 IN. MAX THRU SHOULDER | | WIDTH BETWEEN FLATS | 0.172 INCHES MINIMUM AND 0.188 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 40 |
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