
Heavy Duty Iron Plane Expansion Screw for Hollow Brick and Prefabricated Board. Versatile Application: Suitable for hollow brick, prefabricated board, particleboard, and compartment walls. High Quality Material: Constructed from carbon steel or stainless steel with zinc plating finish. OEM/ODM Services: Accepts OEM and ODM customization for fasteners and machined parts. ISO9001 Certified: Manufacturing process certified under ISO9001 standards for quality assurance. Free Samples Available: Free standard fastener samples provided for new and existing customers. Strict Quality Control: Every production link is inspected with MTC and mill certificates provided. Wide Range of Standards: Complies with ANSI, BSW, DIN, and GB standards for global compatibility. Competitive Pricing: High quality products offered at reasonable prices with fast quotation.