uxcell 8mm Male Thread Diameter Spring Ball Joint Gas End Fitting Product Name : Gas End Fitting;Male Thread Dia. : 8mm/ 0.31" Thread Length : 15mm/ 0.6";Female Thread Dia : 7mm/ 0.28" Ball Joint Size : 29 x 16mm/ 1.1" x 0.63" (L*W);Overall Size : 3.9 x 2.9 x 1.6cm/ 1.5" x 1.1" x 0.63" (L*W*H) Material : Plastic, Metal;Color : Black, Silver Tone Net Weight : 22g;Package Content : 1 x Gas End Fitting