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National Stock Number:
5305-00-852-5056
Federal Supply Class:
5305
National Item Identification Number:
008525056
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:
| 6557 | 01226 | HUTCHINSON AEROSPACE & INDUSTRY, INC. | | CL19SHS | 12123 | IDG USA LLC DBA INDUSTRIAL DISTRIBUTION GROUP | | L26310C | 26267 | SUTTON-LANDIS SHOE MACHINERY CO | | CL19SHS | 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 DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.610 INCHES MINIMUM | | FASTENER LENGTH | 2.094 INCHES NOMINAL | | MATERIAL | STEEL COMP 1213 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE OR | | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC 1ST TREATMENT RESPONSE OR | | QQ-P-416,TYPE 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE 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 | 20.0 DEGREES NOMINAL |
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