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National Stock Number:
5305-00-850-7042
Federal Supply Class:
5305
National Item Identification Number:
008507042
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:
| SCH334 | 01226 | HUTCHINSON AEROSPACE & INDUSTRY, INC. |
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Techincal Specification:
| FASTENER LENGTH | 1.500 INCHES NOMINAL | | HEAD HEIGHT | 0.438 INCHES NOMINAL | | HEAD DIAMETER | 1.125 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 1213 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT STYLE | UNIVERSAL | | POINT SWIVEL INCLUDED ANGLE | 7.5 DEGREES NOMINAL | | POINT DIAMETER | 0.240 INCHES NOMINAL | | POINT LENGTH | 0.203 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.297 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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