Class 12.9 Flat Mat Black Flat Mat Handan Debaiyi Fastener Manufacturing Co., Ltd. Base Info Model NO.:m8-m80Type:Flat GasketMaterial:SteelCombination Washer Structure:A TypeSpring Washer Type:StandardSpecification:M16-M30Origin:China HandanHS Code:7318210000 Description Pre:Carbon Steel Coated Phillips Round Pan Head Self-Drilling Screws Next:The Manufacturer Sells Spring Mats