304 316 Stainless Steel / Zinc flange serrated bolts

  Product Description 304 316 Stainless Steel / Zinc flange serrated bolts   Features : flange bolt   Stainless Steel 18-8 ,  304 Stainless Steel , 316 Stainless Steel    Serrated heads are designed to prevent loosening   The most common stainless steel for general hardware use.   For carbon steel flange bolt, the finish can be Zinc Plated , Yellow Zinc Plated, Black.   The Strength grade for DIN Flange Bolt are 4.8 , 8.8 , 10.9 ,12.9  ( For ASTM Flange Bolt, the grades are Grade 2, Grade 5, Grade 8 )   Coarse (standard) thread 1/4-20   5/16-18   3/8-16    Fine thread is also available .