5305-00-639-7127 SCREW,EXTERNALLY RELIEVED BODY Index 5306-00-639-7138 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-639-7128

Federal Supply Class:
5305

National Item Identification Number:
006397128

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.


Manufacturer Information:
680057712TELEMECHANICS INC
680064959AMERICAN TELEPHONE AND TELEGRAPH CO
680070408AT AND T CORP
6800D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
FASTENER LENGTH0.619 INCHES NOMINAL
HEAD HEIGHT0.094 INCHES NOMINAL
HEAD DIAMETER0.281 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
SHOULDER DIAMETER0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH0.010 INCHES NOMINAL FIRST SHOULDER
SHOULDER LENGTH0.122 INCHES NOMINAL SECOND SHOULDER
SHOULDER SHAPEROUND ALL SHOULDERS
SURFACE TREATMENTZINC OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.250 INCHES MINIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNF


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