High precision M5x0.8 screw thread coils for plastic M

Description New type of M18x2.5 Screw thread coils Product Name New type of M18*2.5 Screw thread coils Material stainless steel 304 Length 1D=18mm, 1.5D=27mm, 2D=36mm, 2.5D=45mm, 3D=54mm Color original/red/black/golden Standard MERTRIC/UNC/UNF/ Circle 5.6K, 9K, 12.3K, 15.7K,19K Coating plates the titanium/cadmium/galvanization Weight/1000pcs 12.39KG, 18.58KG, 24.77KG, 30.96KG,37.16KG Type free running insert ,screw lock insert Outside diameter 21.5-22 Drill diameter 18.6mm