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304 316 Stainless Steel Expansion Bolt DIN912 Screw. Wide Size Range: Available in sizes from M3 to M36 to meet diverse application needs. Multiple Standards: Complies with ISO, DIN, ANSI, JIS, and BSW international standards. Custom Marking: Marking can be customized according to specific customer requirements. Flexible Packaging: Packaging in cartons and pallets or customized per customer request. Free Samples: Free standard fastener samples provided; buyer covers express charges. Factory Direct: Direct manufacturer with advanced production and testing equipment. Strict Quality Control: 100% inspection by QC department before shipment ensures top quality.