3695-00-282-9763 EYELET MACHINE Index 5305-00-282-9771 THUMBSCREW

National Stock Number:
5305-00-282-9768

Federal Supply Class:
5305

National Item Identification Number:
002829768

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).


Techincal Specification:
FASTENER LENGTH0.781 INCHES NOMINAL
HEAD HEIGHT0.750 INCHES NOMINAL
HEAD STYLEWING NO. 2
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1035 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLEFLAT
SPECIAL FEATURES0.07 /N0.50/ DRILL 3/32 IN. FROM BOTTOM OF SHANK
WIDTH BETWEEN FLATS1.250 INCHES NOMINAL
SURFACE TREATMENTPHOSPHATE OR CADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.719 INCHES MINIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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