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National Stock Number:
5305-01-597-2902
Federal Supply Class:
5305
National Item Identification Number:
015972902
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 12759-01255 | 0Y3H3 | FASTENAL COMPANY | | 24247 | 0Y3H3 | FASTENAL COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNRC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.059 INCHES MINIMUM AND | | 0.089 INCHES MAXIMUM | | FASTENER LENGTH | 0.220 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F835 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | BLACK CHEMICAL FINISH OVERALL | | COLOR | BLACK OVERALL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 44.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.429 INCHES MINIMUM AND | | 0.480 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BLACK OXICE FINISH FLAT SOCKET CAP SCREW |
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