10 Pcs Galvanized Flat Knurled Head Fully Threaded Thumb Screws Bolts Fastener,Thumbscrew Threaded Knurled Grip Knobs Thumb Screw,Vesa Screws, Monitor Mount Screws for TV and Monitor Mount(M4x10mm) M4x10mm（10 Pcs） hidden Computer Equipment

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10 Pcs Galvanized Flat Knurled Head Fully Threaded Thumb Screws Bolts Fastener,Thumbscrew Threaded Knurled Grip Knobs Thumb Screw,Vesa Screws, Monitor Mount Screws for TV and Monitor Mount(M4x10mm) M4x10mm（10 Pcs） hidden Computer Equipment10 Pcs Galvanized Flat Knurled Head Fully Threaded Thumb Screws Bolts Fastener,Thumbscrew Threaded Knurled Grip Knobs Thumb Screw,Vesa Screws, Monitor Mount Screws for TV and Monitor Mount(M4x10mm) Size: M4x10mm Quantity10 Pcs Material: carbon steel galvanized Round thumb screw with flat knurled head style. Knurled head provides extra grip for manual tightening. Usually found on thumb screws, a knurled surface on the head gives a better gripping