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		                        | National Stock Number:
 5305-01-614-8900
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 016148900
 
 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:
 
 | 90279A194 | 39428 | MCMASTER-CARR SUPPLY CO | 
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 Techincal Specification:
 
 | THREAD SERIES DESIGNATOR | UNC |  | NOMINAL THREAD DIAMETER | 0.164 INCHES |  | THREAD QUANTITY PER INCH | 32 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.500 INCHES NOMINAL |  | FASTENER LENGTH | 0.500 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | SURFACE TREATMENT | ZINC OVERALL |  | HEAD STYLE | ROUND |  | HEAD DIAMETER | 0.309 INCHES NOMINAL |  | HEAD HEIGHT | 0.120 INCHES NOMINAL |  | INTERNAL DRIVE STYLE | CROSS RECESS TYPE II | 
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