Pan-head Hex Socket Screw - M4 * 6 ～ 50 12.9 Grade Black Color
Brand Name - YFS
25 pieces per bag
Made of the alloy steel (SCM435) from NIPPON STEEL & SUMTOMO METAL with TXG heat treatment technology, these tiny pan-head hex-socket screws are made to be the highest quality by reaching the standard of 12.9 grade with CNLA and A2LA approval.
They are the best choice for fastening in RC projects.