1.Standards: DIN, ISO, IFI 2. Grades: 2 4.8 5 8.8 10.9 12.9 3. Surface treatments: Zinc/ ... 1/4-1 1/4 3. Grade: 2 4.8 5 8.8 10.9 12.9 4. Materials of Stainless ... , Aluminum, Carbon Steel, Brass, Alloy Steel, Nylon, Silicon, Bronze, etc. 5. Surface Treatment of Stainless Steel Bolts we can provide:*Yellow ...