5305-00-206-3416 THUMBSCREW Index 5305-00-206-3422 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-206-3420

Federal Supply Class:
5305

National Item Identification Number:
002063420

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:
2029671UVT5BRP US INC
20296732195OUTBOARD MARINE CORP JOHNSON MOTORS DIV


Techincal Specification:
FASTENER LENGTH0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4037 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH ACROSS FLATS0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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