5306-01-361-3542 BOLT,SHOULDER Index 5305-01-361-3544 THUMBSCREW

National Stock Number:
5305-01-361-3543

Federal Supply Class:
5305

National Item Identification Number:
013613543

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:
NAS1300C4-1680205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD HEIGHT0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
HEAD STYLETHUMB NO. 4
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,COMP 302 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLEPOINTLESS
SPECIFICATION/STANDARD DATA80205-NAS1300 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH BETWEEN FLATS0.793 INCHES MINIMUM AND 0.833 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.929 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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