Flat Head Self Tapping Screw High Low Thread

Jingrun is a Chinese supplier of screws.Our regular types of self-tapping screws are: bugled head drywall screwss, chipboard screw, phillips pan head self-tapping screws, phillips countersunk head cross groove self-tapping screws, etc., these are also our company's main products, product quality is good, the price is cheap, you can wholesale self-tapping nails, or retail, because there are some products in stock.Flat Head Self Tapping Screw High Low Thread a kind of self tapping screw, Both have high and low teeth. It is a custom product.It is generally made of carbon steel, and can also be made of stainless steel .if the material is carbon , the Core hardness is good. It is a high quality self-tapping screw,It is a high quality self-tapping screw,.Can quickly drill into the wood, and play a tighter tightening role.