Multifunctional cold heading machine, as follows: 1, check the size after forming, the appearance of eligibility. 2, tapping was measured through regulations, tooth pattern is qualified. 3, check the appearance after cleaning. 4, packaging and shipping. Our factory is a professional production of hex cap manufacturers, product quality and price competitive. Stainless steel, iron and copper have production, welcome to order! Hexagon DIN439 M1.6X0.35 3.08-3.2 0.75-1.0 M1.8X0.35 3.38-3.5 0.85-1.1 M2X0.4 3.82-4.0 0.95-1.2 M2.5X0.45 4.82-5.0 1.35-1.6 M3X0.5 5.32- 5.5 1.55-1.8 M3.5X0.6 5.82-6.0 1.75-2.0 M4X0.7 6.78-7.0 1.95-2.2 M5X0.8 7.78-8.0 2.45-2.7 M6X1.0 9.78-10.0 2.9-3.2 M8X1.25 12.73-13.0 3.7- 4.0 M10X1.5 16.73-17.0 4.7-5.0 M12X1.75 18.67-19.0 5.7-6.0 M14X2.0 21.67-22.0 6.42-7.0 M16X2.0 23.67-24.0 7.42-8.0