China Supplier Custom Special Square Pan Flat Head Screw Captive Slotted Screw Allen Hex Countersunk Socket Torx Screw. Customized Color Options: Available in Black, ZINC, Black Oxide, Chrome Plated, Silver Plated, and other customized colors. ISO9001:2015 Certified: Factory passed ISO9001 quality management system certification for consistent product quality. Flexible Customization: Offers full customization, minor customization, and flexible customization from samples or designs. Wide Material Selection: Available in Brass, Stainless Steel, Steel, Aluminium, NICKEL, Bronze, and C1022A/C1012 Carbon Steel. High Monthly Supply: Supply ability of 2,700,000 pieces per month to meet large volume orders. Free Sample Availability: Free samples are provided upon request for customers to verify product quality. Multiple Packaging Options: Offers bulk packing, small box, plastic bucket, and custom packaging according to requirements. Global Export Experience: Products exported to over 40 countries including USA, Europe, South America, Africa, and Middle East.