SCREW
P/N MS90727-123
P/N 81821BH050F400N
P/N EE-102684
NSN 5305 00 719 5270
MFG MILITARY STANDARDS
 
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 torqueing 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                           1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM    
FASTENER LENGTH                         4.000 INCHES NOMINAL                             
HEAD STYLE                              HEXAGON                                          
HEAD HEIGHT                             0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM     
WIDTH BETWEEN FLATS                     0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM    
NOMINAL THREAD DIAMETER                 0.500 INCHES                                     
THREAD QUANTITY PER INCH                20                                                
MINIMUM TENSILE STRENGTH                150000 POUNDS PER SQUARE INCH                    
HARDNESS RATING                         32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C      
                                        MAXIMUM OVERALL                                  
MATERIAL                                STEEL OVERALL                                    
MATERIAL DOCUMENT AND                   SAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE  
CLASSIFICATION                          OVERALL                                          
SURFACE TREATMENT                       ZINC AND CHROMATE OVERALL                        
NON-DEFINITIVE GOVERNMENT               FF-S-85                                          
SPEC/STD REFERENCE                                                                        
SPEC/STD CONTROLLING DATA               81348                                            
MANUFACTURERS CODE                                                                       
SURFACE TREATMENT DOCUMENT              ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT    
AND CLASSIFICATION                      RESPONSE OVERALL                                 
THREAD SERIES DESIGNATOR                UNF                                               
NONDEFINITIVE SPEC/STD DATA             2 TYPE AND 10P STYLE AND 8 GRADE