5305-01-307-3548 SCREW,CAP,SOCKET HEAD Index 5305-01-307-3550 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-307-3549

Federal Supply Class:
5305

National Item Identification Number:
013073549

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:
6242949-141D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
6242949-4153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.127 INCHES MINIMUM AND
1.250 INCHES MAXIMUM
FASTENER LENGTH1.210 INCHES MINIMUM AND
1.250 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OR
STEEL COMP 303 OR
STEEL COMP 304 OR
STEEL COMP 305 OR
STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCERAMIC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-81751 TY 1,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
COLORGRAY/GREY OVERALL
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.550 INCHES MINIMUM AND
0.563 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.3125 INCHES MINIMUM AND
0.3160 INCHES MAXIMUM


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