ST3.5-20 X 25 Phillips Pan Head Self-Drilling Screw 304 Stainless Steel DIN7504N (5000pcs/Pkg) Package:5000 while the nylon insert grips

while the nylon insert grips the threads of the bolt

Proper selection and tightening are crucial for reliable connections in numerous applications

They come in various sizes and are commonly used in automotive and construction applications for enhanced stability and support

hex nuts can also feature coatings for corrosion resistance

making them ideal for applications requiring vibration resistance

ST3.5-20 X 25 Phillips Pan Head Self-Drilling Screw 304 Stainless Steel DIN7504N (5000pcs/Pkg) Package:5000 while the nylon insert gripsFender washers have a larger outer diameter to improve load distribution on thin surfaces, such as sheet metal. This design helps prevent damage and enhances the stability of fastened connections.