Knurled Stainless Steel Thumb Screw M3 M4 M5 M6 M8 Flat Head Thumbscrew Bolt
●Size: M4 M5 M6 M8. ●Drive mode: full thread. ●Head shape: cylindrical head. ●The whole body is made of high-quality materials, which is not easy to wear and has strong anti-corrosion and anti-rust properties.