
                                                                                Nominal Diameter | 
                                                                        N/A 1/4 in | 
                                                                                D - Tube O.D. | 
                                                                        N/A 13.8 mm | 
                                                                                Thread Type | 
                                                                        N/A JIS B 0203 (PT), ISO 7/1 | 
                                                                                T | 
                                                                        N/A 3/8 | 
                                                                                E | 
                                                                        N/A 11.0 mm | 
                                                                                E1 | 
                                                                        N/A 9.0 mm | 
                                                                                a - Basic Gauge Length | 
                                                                        N/A 6.4 mm | 
                                                                                h - Width Across Flat | 
                                                                        N/A 22.0 mm | 
                                                                                H - Width Across Flat | 
                                                                        N/A 24.0 mm | 
                                                                                i | 
                                                                        N/A 7.5 mm | 
                                                                                l | 
                                                                        N/A 28.0 mm | 
                                                                                Approx L | 
                                                                        N/A 40.0 mm | 
                                                                                Approx L1 | 
                                                                        N/A 22.5 mm |