M4.2x50mm Stainless Steel Round Head Self Drilling Screws 20pcs

Features:? 410 stainless steel material. Self-drilling screws. It is wood drill tail screw mainly used in steel structure Caigang watt fixed can also be used for fixing the simple construction of the sheet material. It can not be used in combination with metal and metal. Teks self-tapping screws provide secure fastening with strong holding power without the need to pre-drill. Engineered drill-point and flute remove material efficiently and properly size the hole for threads.