5305-01-561-8220 SCREW,CAP,HEXAGON HEAD Index 4810-01-561-8222 VALVE,BUTTERFLY

National Stock Number:
5305-01-561-8221

Federal Supply Class:
5305

National Item Identification Number:
015618221

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:
91290A61039428MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
EXTERNAL THREAD TOLERANCE CLASS5G6G
FASTENER LENGTH28.0 MILLIMETERS NOMINAL
HEAD DIAMETER18.0 MILLIMETERS NOMINAL
HEAD HEIGHT12.0 MILLIMETERS NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL PROPERTY CLASS 12.9 OVERALL
NOMINAL THREAD DIAMETER12.0 MILLIMETERS
WIDTH ACROSS FLATS10.0 MILLIMETERS NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH16.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.8


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