
Black Domed Hexagon Cap Nuts (DIN1587). Wide Material Selection: Available in Stainless Steel, Carbon Steel, Titanium, Aluminum, and Brass. Comprehensive Size Range: Sizes from M3 to M20 available, with custom sizes accepted upon request. Multiple Surface Finishes: Options include Zn-plated, Ni-plated, Black Oxide, Anodize, and more. Strict Quality Certifications: Certified with ISO9001:2008, SGS testing report, and RoHS compliance. OEM Services Available: Custom manufacturing services provided for specific product requirements. Fast Delivery Option: Standard delivery 7-15 days, with urgent order fast delivery available. Free Sample Service: Free samples provided for specification and quality verification. Cost-Free Replacement: Full replacement at our cost if parts do not match PO drawings.