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National Stock Number:
5305-01-047-8818
Federal Supply Class:
5305
National Item Identification Number:
010478818
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:
| 21C5237P17 | 07482 | GENERAL ELECTRIC COMPANY | | 21C5237P17 | 07842 | PENN SCIENTIFIC PRODUCTS COMPANY INC | | 21C5237P17 | 59954 | MAR-CON TOOL COMPANY | | 21C5237P17 | 63259 | BONIFACE TOOL & DIE INC | | 21C5237P17 | 8Z161 | DANVERS ENGINEERING CO INC |
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Techincal Specification:
| FASTENER LENGTH | 0.560 INCHES NOMINAL | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT LENGTH | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM | | POINT STYLE | DOG | | POINT DIAMETER | 0.180 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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