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National Stock Number:
5305-00-255-5481
Federal Supply Class:
5305
National Item Identification Number:
002555481
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:
| C3910-17 | 01726 | CATTY H D CORP | | C3910-17 | 81755 | LOCKHEED MARTIN CORPORATION | | CL-17-SHS | 99862 | CARR LANE MANUFACTURING CO | | CL17SH | 99862 | CARR LANE MANUFACTURING CO | | CL17SHS | 99862 | CARR LANE MANUFACTURING CO |
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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 LENGTH | 0.547 INCHES MINIMUM | | FASTENER LENGTH | 1.031 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | POINT STYLE | UNIVERSAL | | POINT LENGTH | 0.359 INCHES NOMINAL | | POINT DIAMETER | 0.375 INCHES NOMINAL | | POINT SWIVEL INCLUDED ANGLE | 40.0 DEGREES NOMINAL | | FEATURES PROVIDED | CASEHARDENED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 99862 | | DESIGN CONTROL REFERENCE | CL-17-SHS |
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