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National Stock Number:
5305-01-268-5435
Federal Supply Class:
5305
National Item Identification Number:
012685435
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:
| 18020-S-7 | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | HEAD DIAMETER | 0.438 INCHES MINIMUM AND 0.458 INCHES MAXIMUM | | HEAD HEIGHT | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | POINT STYLE | FLAT | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.428 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNF |
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