2010-01-559-7740 TRANSMISSION,MECHANICAL,MARINE Index 5305-01-559-7742 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-559-7741

Federal Supply Class:
5305

National Item Identification Number:
015597741

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:
B1831BH080045N80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS4G6G
FASTENER LENGTH44.6 MILLIMETERS MINIMUM AND 45.4 MILLIMETERS MAXIMUM
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER12.70 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM
HEAD HEIGHT7.83 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL PROPERTY CLASS 12.9 OVERALL
MINIMUM TENSILE STRENGTH1220 MEGAPASCALS
MINIMUM YIELD STRENGTH1100 MEGAPASCALS
NOMINAL THREAD DIAMETER8.0 MILLIMETERS
WIDTH ACROSS FLATS6.02 MILLIMETERS MINIMUM AND 6.09 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTMB633,TY+2CL3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH10.7 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.25


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