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National Stock Number:
5305-99-964-2712
Federal Supply Class:
5305
National Item Identification Number:
999642712
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:
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Techincal Specification:
| NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | CASE HARDEN POINT;THDS TO BS 1580;MEDIUM KNURL ON HD | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF SPEC 29A CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE AND F SPEC 1110 MIL SPEC 4TH TREATMENT RESPONSE HEAD | | SURFACE TREATMENT | PHOSPHATE AND PAINT HEAD | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.156 INCHES MINIMUM AND 1.219 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF | | COLOR | OLIVE DRAB HEAD | | FASTENER LENGTH | 1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM | | HEAD DIAMETER | 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM | | HEAD HEIGHT | 1.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL DOCUMENT AND CLASSIFICATION | DEF 13 GROUP 6C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | POINT LENGTH | 0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM | | POINT STYLE | DOG | | POINT DIAMETER | 0.190 INCHES NOMINAL |
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