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National Stock Number:
5305-01-434-7884
Federal Supply Class:
5305
National Item Identification Number:
014347884
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:
| BACB30JQ6-20 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 1.923 INCHES MINIMUM AND 1.953 INCHES MAXIMUM | | HEAD DIAMETER | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | BEVEL-CONICAL | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OVERALL | | NOMINAL THREAD DIAMETER | 0.3750 INCHES | | SHOULDER DIAMETER | 0.4047 INCHES MINIMUM AND 0.4057 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.2400 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM FIRST SHOULDER | | WIDTH ACROSS FLATS | 0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.688 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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