SCREW
P/N MS16992-5512C
P/N FFB561
NSN 5305 00 177 5623
MFG MILITARY STANDARDS
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME   SCREW,LAG
DEFINITION  An externally threaded fastener having a square or hexagon head and
             with a continuous thread (wood screw type or fetter type) extending
             from a gimlet or cone point for a distance of slightly more than
             one-half the length of the screw.
            
 
CHARACTERISTIC                          VALUE
FASTENER LENGTH                         6.000 INCHES NOMINAL                             
HEAD STYLE                              HEXAGON                                          
HEAD HEIGHT                             0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM    
WIDTH BETWEEN FLATS                     0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM    
SHOULDER DIAMETER                       0.360 INCHES MINIMUM AND 0.388 INCHES MAXIMUM    
                                        FIRST SHOULDER                                    
SHOULDER LENGTH                         0.125 INCHES MINIMUM FIRST SHOULDER              
MINIMUM TENSILE STRENGTH                55000 POUNDS PER SQUARE INCH                     
HARDNESS RATING                         60.0 ROCKWELL B MINIMUM OVERALL                  
NONMACHINE THREAD STYLE                 GIMLET POINT (TYPE A, AB OR BA)                  
NONMACHINE NOMINAL THREAD               0.375 INCHES                                     
DIAMETER                                                                                  
SHOULDER SHAPE                          ROUND FIRST SHOULDER                             
MATERIAL                                STEEL OVERALL                                    
MATERIAL DOCUMENT AND                   FF-B-561,GRADE B FED SPEC SINGLE MATERIAL RESPONSE
CLASSIFICATION                          OVERALL                                          
SURFACE TREATMENT                       ZINC OVERALL                                     
DEFINITIVE GOVERNMENT                   MS16992-551-ZE                                   
SPEC/STD REFERENCE                                                                       
MANUFACTURERS CODE                      96906                                             
NON-DEFINITIVE GOVERNMENT               FFB561                                           
SPEC/STD REFERENCE                                                                       
SPEC/STD CONTROLLING DATA               81348                                             
MANUFACTURERS CODE                                                                       
SURFACE TREATMENT DOCUMENT              ASTM A153-60 ASSN STD SINGLE TREATMENT RESPONSE  
AND CLASSIFICATION                      OVERALL                                           
NONDEFINITIVE SPEC/STD DATA             1 TYPE AND 1 STYLE AND B GRADE