High-Quality Black Phosphated Drywall Screws for Enhanced Strength

High-Quality Black Phosphated Drywall Screws for Enhanced Strength. High Strength Material: Made from C1022A carbon steel with Grade 12.9 for superior durability. Versatile Surface Options: Available in black phosphate, grey phosphate, yellow zinc-plated, and white zinc plated. Wide Size Range: Diameters from M3.5 to M4.8 and lengths from 13mm to 254mm. Customization Available: Full customization, minor customization, and design-based options are supported. Professional Manufacturing: Three own factories in Tianjin with 280 sets of automatic production equipment. Fast Response Time: Customer inquiries are replied to within 24 working hours. Flexible Payment Terms: Accepts 30% T/T prepayment, 70% T/T before shipment, and L/C. Global Shipping Options: Supports sea freight, land freight, and air freight from Tianjin Port.