Factory Price Black Phosphated Bugle Head Gypsum Drywall Screws Hardened C1022A

Factory Price Black Phosphated Bugle Head Gypsum Drywall Screws Hardened C1022A. High Strength Grade 12.9: Made from C1022A carbon steel with grade 12.9 hardness for superior durability. Multiple Surface Finishes: Available in Black Phosphated, Zinc Plated, and other protective coatings. OEM/ODM Customization: Supports full customization including designs, samples, and minor adjustments. Wide Diameter Range: Offers sizes from M3.5 to M6.3 with fine or coarse thread options. SGS Certified Quality: Products meet international standards with SGS certification for reliability. Direct Manufacturer: Factory direct supply ensuring competitive pricing and quality control. Flexible Delivery Options: Stock items ship within 15 days; bulk orders take 30-60 days. Free Sample Availability: Free samples provided to test quality before placing bulk orders.