Hex Washer Head Self Drilling Screws

Self-Tapping Screws by Bykonh. Details:PRODUCT SPECIFICATION Hex washer head self drilling metal screws are made of high quality 410 stainless steel, which has high strength and hardness ratings and resists corrosion in mild environments. It is wood drill tail screw, mainly used in steel structure fixed, can also be used for fixing the simple construction of the sheet material. Self-tapping tek screws provide secure fastening with strong holding power without the need to pre-drill.