Peco, 38FHNUSSZJ, Hex Nut, Measurement System: Imperial, 3/8-16 Thread, Carbon Steel, Zinc Plated, 0.551 to 0.562 in Width Across Flats, 21/64 in Height, USS Thread, B68-C32 Rockwell Hardness
ANSI/ASME B18.2.2
                
                
                    
                        
                            
                                
                                    Diameter - Thread Size
                                    3/8-16
                                
                            
                                
                                    Finish
                                    Zinc Plated
                                
                            
                                
                                    Hardness
                                    B68-C32 Rockwell
                                
                            
                                
                                    Height
                                    21/64 in
                                
                            
                                
                                    Material
                                    Carbon Steel
                                
                            
                                
                                    Measurement System
                                    Imperial
                                
                            
                                
                                    Thread Type
                                    USS
                                
                            
                                
                                    Width Across Flats
                                    0.551 to 0.562 in
                                
                            
                                
                                    Brand
                                    Peco
                                
                            
                         
                    
                 
                
                    
                        
90000 psi coarse thread, 80000 psi fine thread proof loadLow carbon steel-requirements-carbon: 0.47 percent maximum, phosphorus: 0.12 percent maximum, sulfur: 0.23 percent maximum0.628 to 0.65 in W across corner