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National Stock Number:
5305-00-177-5513
Federal Supply Class:
5305
National Item Identification Number:
001775513
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:
| A265-1354-1 | 21269 | ESSEX ELECTRO ENGINEERS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 3.000 INCHES MINIMUM | | FASTENER LENGTH | 3.000 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HEAD STYLE | THUMB NO. 4 | | HEAD HEIGHT | 0.562 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.875 INCHES NOMINAL | | POINT STYLE | POINTLESS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 21269 | | DESIGN CONTROL REFERENCE | A265-1354-1 |
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