
                                                                                Product | 
                                                                        N/A Tapping Screws | 
                                                                                Unit of Measure | 
                                                                        N/A English | 
                                                                                Nominal Size or Basic Screw Dia. | 
                                                                        N/A 3/8 in | 
                                                                                Nominal Size or Basic Screw Dia. (Decimal) | 
                                                                        N/A 0.3750 in | 
| Applicable to Screw Types1 | 
                                                                                    
                                                                                        N/A
                                                                                          3  4  | 
                                                    
                                                                                Max. Width Across Flats (A) | 
                                                                        N/A 0.562 in | 
                                                                                Min. Width Across Flats (A) | 
                                                                        N/A 0.551 in | 
                                                                                Min. Width Across Corners (W) | 
                                                                        N/A 0.614 in | 
                                                                                Max. Head Height (H) | 
                                                                        N/A 0.295 in | 
                                                                                Min. Head Height (H) | 
                                                                        N/A 0.270 in | 
                                                                                Max. Washer Dia. (B) | 
                                                                        N/A 0.780 in | 
                                                                                Min. Washer Dia. (B) | 
                                                                        N/A 0.720 in | 
                                                                                Max. Washer Thickness (U) | 
                                                                        N/A 0.063 in | 
                                                                                Min. Washer Thickness (U) | 
                                                                        N/A 0.037 in | 
                                                                                Min. Protrusion Beyond Gaging Ring (F) | 
                                                                        N/A 0.162 in |