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National Stock Number:
5305-01-296-7809
Federal Supply Class:
5305
National Item Identification Number:
012967809
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:
| 3/8-24 UNF-3AX4 IN. LG STL | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| FASTENER LENGTH | 3.940 INCHES MINIMUM AND 4.000 INCHES MAXIMUM | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON | | HOLE DIAMETER | 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM | | HOLE QUANTITY | 2 | | HOLE TYPE | DRILLED | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL UNS K03104 OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | NONDEFINITIVE SPEC/STD DATA | 6 TYPE | | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 3.857 INCHES MINIMUM AND 4.000 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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