ST3.9-19 X 25 Phillips Flat Head Self-Drilling Screw 410 Stainless Steel DIN7504P (5000pcs/Pkg)

These general-use flat washers are placed under the head of a bolt or nut to create a smooth bearing surface and distribute the load over a wider area.

• Free Shipping for orders over $100，Orders below $100 will have a shipping fee applied based on the weight of the items and the ship to location
• Usually ships within 3days, takes around 10days to arrive, shipped by UPS\DHL
• Eligible for Return, Refund or Replacement within 30 days of receipt