SCREW
P/N ST3M794V3-7A
P/N HT4058-3-7A
P/N HT353P3-7
NSN 5306 01 196 3866
MFG KLX INC
 
NEW GOV SURPLUS
 
ITEM NAME   SCREW,CLOSE TOLERAN
DEFINITION  A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion
             is of specified grip length, plated or un-plated, and is machined to a
             tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a
             specific diameter for items (1.000 IN.) (25 mm) or less in diameter.
             Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of
             fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal
             major diameter of the threads shall be at least one thousandth (0.001
             IN.) (0.025 mm) below the minimum shank diameter, but not below the
             minimum major diameter for applicable class of fit, as shown in the
             Screw Thread Standards, FED STD H28 and/or other nationally recognized
             standards. The head is designed to be held or driven with an inserted
             driver. It is not designed for rotation by the thumb and fingers. A
             locking feature may be incorporated in the design of the head or
             threads.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            3A                                               
THREAD DIRECTION                        RIGHT-HAND                                       
THREAD LENGTH                           0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM    
FASTENER LENGTH                         0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM    
HEAD STYLE                              FLAT COUNTERSUNK UNDERCUT                        
HEAD DIAMETER                           0.4625 INCHES MINIMUM AND 0.4672 INCHES MAXIMUM  
HEAD HEIGHT                             0.1146 INCHES MINIMUM AND 0.1186 INCHES MAXIMUM  
GRIP DIAMETER                           0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM  
INTERNAL DRIVE STYLE                    HIGH-TORQUE                                      
NOMINAL THREAD DIAMETER                 0.190 INCHES                                      
GRIP LENGTH                             0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM    
THREAD QUANTITY PER INCH                32                                               
COUNTERSINK ANGLE                       100.0 DEGREES NOMINAL                             
SURFACE FINISH                          32.0 MICROINCHES BEARING SURFACE OF HEAD 32.0    
                                        MICROINCHES GRIP 32.0 MICROINCHES THREADS        
SPECIAL FEATURES                        FURNISHED WITH O'RING                            
MATERIAL                                TITANIUM ALLOY OVERALL                           
MATERIAL DOCUMENT AND                   AMS 4967 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE
CLASSIFICATION                          OVERALL                                          
THREAD SERIES DESIGNATOR                UNJF