5306-01-134-5738 BOLT,SQUARE NECK Index 5305-01-134-5740 SCREW,CAP,SOCKETHEAD

National Stock Number:
5305-01-134-5739

Federal Supply Class:
5305

National Item Identification Number:
011345739

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
91251A12439428MCMASTER-CARR SUPPLY CO


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.125 INCHES
THREAD QUANTITY PER INCH40
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.170 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
FASTENER LENGTH0.220 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
MATERIALSTEEL OVERALL
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.198 INCHES MINIMUM AND
0.205 INCHES MAXIMUM
HEAD HEIGHT0.121 INCHES MINIMUM AND
0.125 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.094 INCHES NOMINAL


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