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National Stock Number:
5305-01-596-7075
Federal Supply Class:
5305
National Item Identification Number:
015967075
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:
| C18076-SS-12 | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.500 INCHES NOMINAL | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | DIAMOND KNURLED 45 DEGREE CORNERED THUMB SCREW | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD QUANTITY PER INCH | 20 |
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