SCREW
PN 6242933-307
NSN 5305-01-298-7764
MFG NAVAL SEA SYSTEMS
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   SCREW,CAP,HEXAGON H
DEFINITION:  An externally threaded fastener designed for insertion into holes in
             assembled parts, for mating with a preformed internal thread and for
             tightening or releasing by torquing the head.  The threaded and
             unthreaded portions are both of the same nominal diameter of 0.190
             inch (5 mm) or larger.  Head dimensions and sizes of threaded and
             unthreaded portions shall conform to internationally recognized
             fastener standards.  The thread length being the controlled dimension,
             the grip length is not specified.  A locking feature may be
             incorporated in the design of the head or threads.  The head is not
             designed to be held or driven with an inserted driver or by the thumb
             and fingers.  Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY;
             BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            2A                                               
THREAD DIRECTION                        RIGHT-HAND                                        
THREAD LENGTH                           0.766 INCHES MINIMUM                             
FASTENER LENGTH                         0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM    
HEAD STYLE                              HEXAGON                                           
HEAD HEIGHT                             0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM    
WIDTH BETWEEN FLATS                     0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM    
NOMINAL THREAD DIAMETER                 0.250 INCHES                                     
THREAD QUANTITY PER INCH                28                                               
MINIMUM TENSILE STRENGTH                80000 POUNDS PER SQUARE INCH                     
COLOR                                   GRAY OVERALL                                     
MATERIAL                                STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP   
                                        302B OR STEEL COMP 303 OR STEEL COMP 303SE OR    
                                        STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP  
                                        305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL 
                                        COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR
                                        STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP   
                                        316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL
                                        COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR  
                                        STEEL COMP 385 OVERALL                           
SURFACE TREATMENT                       CERAMIC OVERALL                                  
SURFACE TREATMENT DOCUMENT              MIL-C-81751 TY 1 CL 4 MIL SPEC SINGLE TREATMENT  
AND CLASSIFICATION                      RESPONSE OVERALL