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National Stock Number:
5305-01-434-3749
Federal Supply Class:
5305
National Item Identification Number:
014343749
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:
| 91292A226 | 39428 | MCMASTER-CARR SUPPLY CO | | B18.3.1M-M12X1.75X25,SHCS,ZNPL | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | B1831BH120025N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | M | | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS | | THREAD PITCH IN MILLIMETERS | 1.75 | | EXTERNAL THREAD TOLERANCE CLASS | 4G6G | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 25.0 MILLIMETERS NOMINAL | | FASTENER LENGTH | 25.0 MILLIMETERS NOMINAL | | MATERIAL | STEEL PROPERTY CLASS 12.9 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | DIN 912 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TYPE 2,CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND | | 44.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 1220 MEGAPASCALS | | MINIMUM YIELD STRENGTH | 1100 MEGAPASCALS | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 17.6 MILLIMETERS MINIMUM AND | | 18.0 MILLIMETERS MAXIMUM | | HEAD HEIGHT | 11.7 MILLIMETERS MINIMUM AND | | 12.0 MILLIMETERS MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 12.0 MILLIMETERS MINIMUM AND | | 12.1 MILLIMETERS MAXIMUM |
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