SCREW
PN 186248
PN 3176208-C-520
NSN 5305-00-413-0056
MFG L- 3 COMMUNICATIONS
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   SCREW,CAP,SOCKET HE
DEFINITION:  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.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            2A                                               
THREAD DIRECTION                        RIGHT-HAND                                       
THREAD LENGTH                           0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM     
FASTENER LENGTH                         0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM    
HEAD STYLE                              BUTTON                                           
HEAD DIAMETER                           0.303 INCHES MINIMUM AND 0.321 INCHES MAXIMUM    
HEAD HEIGHT                             0.086 INCHES MAXIMUM                             
LOCKING FEATURE                         PELLET OR STRIP THREADS                          
INTERNAL DRIVE STYLE                    CROSS RECESS TYPE 1                              
NOMINAL THREAD DIAMETER                 0.138 INCHES                                     
THREAD QUANTITY PER INCH                32                                               
MATERIAL                                PLASTIC LOCKING FEATURE STEEL COMP 302 OR STEEL  
                                        COMP 430 OR STEEL COMP 303 FASTENER              
SURFACE TREATMENT                       PASSIVATE FASTENER                               
SURFACE TREATMENT DOCUMENT              QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE       
AND CLASSIFICATION                      FASTENER                                         
THREAD SERIES DESIGNATOR                UNC