High Quality for U Bolt Foundation Anchor Bolt - Square head bolt – Ji Luo Fastener

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Product Description Square head bolts are divided into 4.8 class bolts, 8.8 class bolts, 10.9 class bolts and 12.9 class bolts according to the grade of high strength. It is widely used in the electrical and electronic industry, water conservancy engineering industry, electrical products, mechanical equipment, chemical equipment, ships, vehicles, steel structures and so on 1. Grade: SUS201,SUS304,SUS316,A2-70,A2-80,A4-80,4.8 6.8 8.8 10.9 12.9 2. Size: M3-48 3. Standard: DIN /ANSI 4. Certi...