5305-01-174-0523 SCREW,CAP,SOCKET HEAD Index 5305-01-174-0526 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-174-0525

Federal Supply Class:
5305

National Item Identification Number:
011740525

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.


Manufacturer Information:
B1831CH120030N80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
THREAD SERIES DESIGNATORM
NOMINAL THREAD DIAMETER12.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS1.75
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH26.1 MILLIMETERS MINIMUM AND
30.4 MILLIMETERS MAXIMUM
FASTENER LENGTH29.60 MILLIMETERS MINIMUM AND
30.40 MILLIMETERS MAXIMUM
MATERIALSTEEL OVERALL
SURFACE TREATMENTOXIDE OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
44.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH1220 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH1100 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER17.63 MILLIMETERS MINIMUM AND
18.00 MILLIMETERS MAXIMUM
HEAD HEIGHT11.79 MILLIMETERS MINIMUM AND
12.00 MILLIMETERS MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS10.0 MILLIMETERS NOMINAL
SPECIAL FEATURESCOLORE BLACK


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