5305-01-581-4213 SCREW,MACHINE Index 5305-01-581-4393 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-581-4215

Federal Supply Class:
5305

National Item Identification Number:
015814215

Description:
THUMBSCREW

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).


Manufacturer Information:
91830A6340AG09SZY HOLDINGS, LLC
91830A63439428MCMASTER-CARR SUPPLY CO


Techincal Specification:
FASTENER LENGTH1.375 INCHES NOMINAL
HARDNESS RATING80.0 ROCKWELL B NOMINAL OVERALL
HEAD DIAMETER1.250 INCHES NOMINAL
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEKNURLED NO. 1
MATERIALSTEEL COMP 303 OR STEEL COMP 304 OVERALL
MINIMUM TENSILE STRENGTH75000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYTHUMB SCREW
SHOULDER DIAMETER0.625 INCHES NOMINAL ALL SHOULDERS
SHOULDER SHAPEROUND ALL SHOULDERS
SHOULDER LENGTH0.500 INCHES NOMINAL ALL SHOULDERS
SPECIAL FEATURESTIP STYLE-FLAT POINT (NO DIMENSIONS GIVEN);MATERIAL 18-8 STAINLESS STEEL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.625 INCHES NOMINAL
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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