Our double-end left and right threaded screws with washer is precision-crafted from high-strength carbon steel, offering reliable mechanical strength and long service life. It features full-length threads on both ends. Coated with eco-friendly blue zinc plating, this fastener delivers excellent corrosion resistance, protecting against rust and oxidation in harsh environments. The non-toxic plating meets global environmental standards, ensuring safe use across industries while maintaining a clean, professional finish. This versatile component is widely applied in mechanical equipment assembly, construction and structural support, electrical and electronic enclosures and automotive and furniture manufacturing. Custom sizes, thread types and specifications are available to match your unique project requirements.

•Standard: Metric

• Size for Double End Rods: M4-M12 and non-standard sizes as per drawings.

• Material: Carbon steel

• Surface Finish: Zinc-plating(ROHS) , as per customer’s requirements

• Color: Blue, Black and as per customer’s requirements

• Lead Time: 7-15 working days for standard items; 15–25 working days for non-standard customized products

• Packing: Poly Bag+ Carton+ Pallet, or as per customer’s requirement

• Payment: T/T or Paypal

• Trade Term: EXW, FOB, DDP, DAP, FCA…

• Application for Double Ended Left and Right Threaded Screws:  widely applied in mechanical equipment assembly, construction and structural support, electrical and electronic enclosures and automotive and furniture manufacturing.

Non-standard Customization Accepted; OEM & ODM Service Provided; Produce according to customer’s drawings, samples and requirements; One-stop fastener solution service

Tip: For more industry standards and product specifications, you can refer to the professional information provided by ASTM and other authoritative organizations.