5305-00-071-2476 SCREW,CAP,SOCKET HEAD Index 5305-00-071-2480 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-071-2478

Federal Supply Class:
5305

National Item Identification Number:
000712478

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:
12Z1037-5194135NAVAL ORDNANCE STANDARDS


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.112 INCHES
THREAD QUANTITY PER INCH40
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.187 INCHES MINIMUM
FASTENER LENGTH0.187 INCHES NOMINAL
MATERIALSTEEL COMP 4037 OVERALL
SURFACE TREATMENTZINC OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.183 INCHES NOMINAL
HEAD HEIGHT0.112 INCHES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.080 INCHES NOMINAL
FEATURES PROVIDEDCASEHARDENED
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE94135
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE12Z1037-51


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