5305-01-566-6147 SCREW,SPECIAL HI-LO Index 5305-01-566-8823 SCREW,WOOD

National Stock Number:
5305-01-566-8019

Federal Supply Class:
5305

National Item Identification Number:
015668019

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:
90195A700-1/4-20X0.75039428MCMASTER-CARR SUPPLY CO


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
MATERIALIRON OVERALL
SURFACE TREATMENTZINC OVERALL
HARDNESS RATING70.0 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH45000 POUNDS PER SQUARE INCH
HEAD STYLEWING NO. 1
PART NAME ASSIGNED BY CONTROLLING AGENCYWING-HEAD THUMB SCREW


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