M2x4mm Aluminium Alloy Flat Head Knurled Thumb Screws Bolts For DIY Modification Amount:5 Pcs This 140mm (5

This 140mm (5

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🔸 How is thread length measured for these thumb screws

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M2x4mm Aluminium Alloy Flat Head Knurled Thumb Screws Bolts For DIY Modification Amount:5 Pcs This 140mm (5M2x4mm Aluminium Alloy Knurled Thumb Screws Tool Free Fastening for Precision DIY Builds When you're mid build and reaching for a screwdriver slows everything down, a reliable knurled thumb screw makes the difference. These M2x4mm flat head knurled thumb screws are designed for makers, hobbyists, and electronics enthusiasts who need fast, repeatable hand tightening without sacrificing holding strength. Whether you're assembling RC car chassis,