ZJK Industrial (Zhongjinke) is a China-based precision metal components manufacturer focused on small, high-tolerance fasteners and structural parts for consumer electronics and new energy vehicles. Its products include precision screws, nuts, bolts, cold-headed parts, CNC-machined turning parts, and stamping parts used in mobile phones, smart watches, drones, 5G base stations, and EV platforms. ZJK sells directly to OEM customers and their supply chains through an in-house sales team in China, supplemented by a North America sales representative network. Revenue scales with production volume and product mix — more complex parts like CNC-machined components and specialty stamped parts carry higher prices than standard fasteners. ZJK engages customers early in the product development cycle to co-design parts to spec, which reduces customer switching and provides visibility into upcoming production ramps. The company produced approximately 9.7 billion parts in FY2025, up from 5.7 billion in FY2024. ZJK argues it differentiates through proprietary tooling and die designs, process innovations that improve yield and reduce scrap, and the ability to produce extremely small geometries. The company is pursuing geographic diversification beyond China, operating a Vietnam factory established in 2024 and planning a U.S. joint venture manufacturing facility targeting AI, semiconductor, electronics, and automotive customers as part of a "Made in America" strategy.