250Pcs Self Drilling Screw Zinc Plated Carbon Steel Fasteners for Sheet Metal Wood Work M4.8x19 Round Washer Head

1、UNIFORM FORCE AND NON SLIP: Come with standard screw smooth and complete bring uniform force not easy to slip during spinning 2、EASY DRILLING: Threads reduce resistance when screwing in and prevent cracking. Of sharpness tails are easy to drill no need to drill first 3、CORROSION RESISTANT: Self drilling screw possess certain strength and hardness grades to resist corrosion in mild environments 4、NO BURRS OR GAPS: The screw section is smooth without burrs and the threads are clear and neat without gaps which is conducive to tightening 5、WIDE RANGE OF USES: Self drilling screws are widely used in household and office appliances fasteners in the workplace electrical products communication equipment ship assembly machinery furniture repair work DIY crafts