Thread Size
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          1/4-20 
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Grip Range
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .165 - .260 in
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                B ± .015
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .510 in
                                                                                    
                                                                                                                                                      | 
                                                    
                                                    
                                                                        
                                                                                C Nom.
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .030 in
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                øD Max.
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .374 in
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                M Ref.
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .400 in
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Hole Size In Sheet + .006 -.000
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          .375 in
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Fastening
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          Installed 
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Thread Specification
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          2B per ASME B1.1 
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Standard Material
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          Low Carbon Steel 
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                Standard Finish
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          RoHS Compliant Zinc Yellow Plus Lubricant 
                                                                                    
                                                                                                                                                     | 
                                                    
                                                    
                                                                        
                                                                                CAD Supplier
                                                                                                                                                                                                                                 | 
                                                                        
                                                                                    
                                                                                        N/A
                                                                                          PennEngineering® (Atlas®) 
                                                                                    
                                                                                                                                                     |