nickel fasteners Application: Machinery, electronics, chemical industry, metallurgy, aviation, space Grade: N4,N6,N8, Product name: nickel fastenersMaterial:N4,N6,N8Specifications:M10,M12,M14,M20,M22,M30Quality standards:ISO9001-2008Packaging:Wooden casesDelivery time:3-25days nickel fasteners