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National Stock Number:
5305-01-126-1062
Federal Supply Class:
5305
National Item Identification Number:
011261062
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:
| 78641 | 59500 | TENNANT COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 2.500 INCHES NOMINAL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | HEAD STYLE | THUMB NO. 4 | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT STYLE | FLAT | | WIDTH BETWEEN FLATS | 0.810 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 2.389 INCHES MINIMUM AND 2.500 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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