PrecisionGeek Knurled Thumb Screw Black Steel M4 x 12mm DIN 653 16mm dia (Set of 4)

Thread d1: M4; Thread length l: 12mm; Head diameter d2: 16mm; Head height k: 3.5mm (DIN 653) Oxidised Steel – Durable, corrosion-resistant, and treated with a black oxide finish for increased longevity and a sleek, matte appearance. Perfect Fit – Designed to meet tight technical specifications Perfect for audiophile systems, computer hardware builds, precision mechanical setups, and bespoke engineering projects. ✅ DIN 653 Standard – Manufactured to the DIN 653 flat-head knurled screw standard, ensuring compatibility and reliability for technical applications. ✅ Precision-Engineered M4 x 12mm Size – Perfectly sized for electronics, furniture, control panels, 3D printing assemblies, and more. ✅ Black Oxidised Steel – Durable and corrosion-resistant finish ideal for industrial, workshop, and DIY use. ✅ Tool-Free Handling – Knurled surface provides enhanced grip for easy hand-tightening without additional tools. ✅ Set of 4 Screws – Convenient pack of four high-precision components for multiple applications. ✅ Made in Europe – Manufactured in Europe with strict quality control and high-grade steel materials.