DIN251cheese head hex socket flange screw-for elevator_ specification: M6*10 Finishing: Zinc-plating Material:10B21 1.Product:Baosteel raw material make sure the product good toughness and high strength,quality meets the demand of International European Union standards. 2..Application：this kind of product is for machinery equipment mechanical electrical equipment,processing and manufacturing equipemt,electrical texting machine,elevator 3.we also can give your suggestion and design according to your drawings and samples. .Any specific screws can be provided according to customers' requirements . All the NON STANDARD FASTENERS are customized. 4. FREE SAMPLES can be sent on request. Come to see us,Let's talk more details.