5306-00-206-1572 BOLT,MACHINE Index 5305-00-206-1576 SCREW,SHOULDER

National Stock Number:
5306-00-206-1573

Federal Supply Class:
5306

National Item Identification Number:
002061573

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (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 not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.


Manufacturer Information:
760720319200US ARMY ARDEC RDECOM
BL71479864959AMERICAN TELEPHONE AND TELEGRAPH CO


Techincal Specification:
FASTENER LENGTH2.500 INCHES NOMINAL
HEAD HEIGHT0.312 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1117 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SHOULDER DIAMETER0.310 INCHES MINIMUM AND 0.311 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH2.062 INCHES NOMINAL FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL
SURFACE TREATMENTPHOSPHATE AND ZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.328 INCHES MINIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC


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