
Wholesale 1/4 5/16 3/8 Self-Locking Hex Nut Steel Lock Nut. Diverse Material Options: Available in Aluminum, Brass, Stainless Steel, Carbon Steel, Titanium, and Plastic. Multiple Surface Finishes: Options include Black, Zinc, Black Oxide, Zinc Plated, Silver Plated, and Zinc-Flake Coated. Custom Head Types: Square, T, Wing, U, and Round types available based on customer requirements. OEM and ODM Services: Full customization support for manufacturing parts according to drawings and specifications. Strict Quality Control: ISO process compliance with manual and machine screening at every production step. Factory Direct Sales: Direct manufacturer sales ensuring best pricing and guaranteed product quality. Wide Industry Application: Suitable for Heavy Industry, General Industry, and Automotive sectors. Flexible Payment Terms: Supports LC, T/T, D/P, PayPal, Western Union, and small-amount payments.