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National Stock Number:
5305-01-226-1946
Federal Supply Class:
5305
National Item Identification Number:
012261946
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:
| 3C3059P08 | 07482 | GENERAL ELECTRIC COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 0.990 INCHES NOMINAL | | HEAD DIAMETER | 0.380 INCHES NOMINAL | | HEAD HEIGHT | 0.630 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 4 | | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | SPECIAL FEATURES | UNDERCUT IN SHANK 0.029 IN. MIN 0.032 IN. MAX LENGTH,DIA 0.210 IN. MIN 0.212 IN. MAX | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.450 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 28 |
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