ITEM NAME:   BOLT,EXTERNALLY REL
DEFINITION:  An externally threaded fastener whose threaded portion is of one
             nominal diameter, and whose unthreaded portion has been machined or
             ground in one or more places or over its entire length to a maximum
             diameter less than the minimum pitch diameter of the thread (excludes
             undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or
             larger in size and has a head which is not designed to be held or
             driven with an inserted driver or designed for rotation by the thumb
             and fingers. A locking feature may be incorporated in the design of
             the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW.
             See also SCREW, EXTERNALLY RELIEVED BODY.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            1A                                               
THREAD DIRECTION                        RIGHT-HAND                                        
THREAD LENGTH                           0.670 INCHES MINIMUM AND 0.720 INCHES MAXIMUM    
FASTENER LENGTH                         2.210 INCHES MINIMUM AND 2.230 INCHES MAXIMUM    
HEAD STYLE                              DEE CHAMFER                                       
HEAD DIAMETER                           0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM    
HEAD HEIGHT                             0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM    
DISTANCE FROM CENTERLINE TO             0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM    
FLAT                                                                                     
FIRST DIAMETER FROM HEAD                0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM    
SECOND DIAMETER FROM HEAD               0.383 INCHES MINIMUM AND 0.384 INCHES MAXIMUM    
THIRD DIAMETER FROM HEAD                0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM    
FOURTH DIAMETER FROM HEAD               0.383 INCHES MINIMUM AND 0.384 INCHES MAXIMUM    
DISTANCE FROM LARGEST                   0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM    
BEARING SURFACE OF HEAD TO                                                               
END OF FIRST DIAMETER                                                                     
DISTANCE FROM LARGEST                   0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM    
BEARING SURFACE OF HEAD TO                                                               
END OF SECOND DIAMETER                                                                    
DISTANCE FROM LARGEST                   1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM    
BEARING SURFACE OF HEAD TO                                                               
END OF THIRD DIAMETER                                                                     
DISTANCE FROM LARGEST                   1.437 INCHES MINIMUM AND 1.447 INCHES MAXIMUM    
BEARING SURFACE OF HEAD TO                                                               
END OF FOURTH DIAMETER                                                                    
NOMINAL THREAD DIAMETER                 0.375 INCHES                                     
THREAD QUANTITY PER INCH                24                                               
EXTERNALLY RELIEVED BODY                4                                                
DIAMETER QUANTITY                                                                        
MATERIAL                                STEEL CORROSION RESISTING OVERALL                 
DESIGN CONTROL REFERENCE                369297P10                                        
THE MANUFACTURERS DATA                  77445                                            
MANUFACTURERS CODE                                                                        
THREAD SERIES DESIGNATOR                UNF 
NEW GOVERNMENT SURPLUS, SUPPLIER CODE 03EF7