Surface Anti-Rust Treatment
Since spring steel is highly susceptible to oxidation, all products undergo a dewatering anti-rust oil immersion process before dispatch to ensure long-term protection during maritime transit.
Sorting & Inner Packaging
For small to medium sizes (M2–M12), we provide premium EternalFast blue-and-white branded boxes (standard 1,000 pcs/box) for easy inventory management and retail display.
Logistics & Weight Optimization
As spring washers are lightweight components, we recommend shipping them as "filler cargo" alongside heavy hex bolts and nuts. This helps optimize the container's weight-to-volume ratio and significantly reduces overall freight costs per unit.