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National Stock Number:
5305-01-381-2003
Federal Supply Class:
5305
National Item Identification Number:
013812003
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:
| PQC-15 | 29440 | W. M. BERG INC | | PWA70495-2 | 77445 | RTX CORPORATION |
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Techincal Specification:
| COLOR | BLACK HEAD | | FASTENER LENGTH | 1.000 INCHES NOMINAL | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.2188 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | PLASTIC HEAD | | MATERIAL | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE AND STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L THREADS | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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