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National Stock Number: 5305-00-144-0425
Federal Supply Class: 5305
National Item Identification Number: 001440425
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:
8438513 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE | C&5915 | 70318 | ALLMETAL SCREW PRODUCTS CORP | C&5915&1 | 70318 | ALLMETAL SCREW PRODUCTS CORP |
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Techincal Specification:
FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM | HEAD HEIGHT | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM | HEAD STYLE | THUMB NO. 3 | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL COMP 303 OVERALL | NOMINAL THREAD DIAMETER | 0.250 INCHES | POINT STYLE | FLAT | WIDTH BETWEEN FLATS | 1.046 INCHES MINIMUM AND 1.078 INCHES MAXIMUM | SURFACE TREATMENT | PASSIVATE OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM | THREAD SERIES DESIGNATOR | UNF | THREAD QUANTITY PER INCH | 28 |
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