5305-01-570-1661 SCREW,CAP,SOCKET HEAD Index 5305-01-570-2990 SCREW,MACHINE

National Stock Number:
5305-01-570-2320

Federal Supply Class:
5305

National Item Identification Number:
015702320

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:
91253A58039428MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH0.625 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM OVERALL
HEAD DIAMETER0.656 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCY5/16 18 X 5/
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH144000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURESASTM SPECIFICATION: ASTM F835;TIP TYPE: PLAIN
WIDTH ACROSS FLATS0.187 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.427 INCHES NOMINAL
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNC


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