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National Stock Number:
5305-01-297-3103
Federal Supply Class:
5305
National Item Identification Number:
012973103
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).
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Manufacturer Information:
| 90196A712 | 39428 | MCMASTER-CARR SUPPLY CO | | 97568A712 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| FASTENER LENGTH | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.940 INCHES MINIMUM AND 1.060 INCHES MAXIMUM | | HEAD STYLE | WING NO. 2 | | MATERIAL | IRON ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | POINT STYLE | POINTLESS | | WIDTH BETWEEN FLATS | 2.250 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.846 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNC |
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