M4 * 20mm Aluminium Alloy Knurled Thumb Screw Ten Colours Available PC Case DIY

Features: Coloured Aluminium Alloy High Head Hand Screw M4 20mm Is A Fastener With A Longer Screw Length, Suitable For Occasions Where Deeper Penetration Or Higher Fixing Force Is Required. Application Scenario: Suitable For Occasions That Require Deeper Penetration Or Greater Fixing Force, Such As Computer Cabinets, Chassis, Heads And Other Occasions That Require Hand-Tightening.