5305-01-163-8241 SETSCREW Index 5305-01-163-8243 THUMBSCREW

National Stock Number:
5305-01-163-8242

Federal Supply Class:
5305

National Item Identification Number:
011638242

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:
6D174611083CATERPILLAR INC


Techincal Specification:
FASTENER LENGTH1.300 INCHES MINIMUM AND 1.320 INCHES MAXIMUM
HEAD HEIGHT0.800 INCHES MINIMUM AND 0.820 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION1E424-B,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON CAST OVERALL
POINT LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
POINT STYLECONE
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.500 INCHES
WIDTH BETWEEN FLATS1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.830 INCHES MINIMUM AND 0.850 INCHES MAXIMUM
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNC


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