Import Cylindrical Knob Locks — Buy in Bulk from Supplier in China

Cylindrical knob locks from Rongtai Hardwear feature a handball constructed from 201 stainless steel and secondary components made from 430 stainless steel, offering a balance of corrosion resistance and structural integrity. The design is optimized for door and cabinet applications where mechanical durability and resistance to environmental wear are required. These locks are available in multiple finishes to match architectural aesthetics without compromising function.

The material composition aligns with standard industrial practices for low-to-mid tier commercial hardware: 201 stainless steel provides adequate rust resistance in indoor environments, while 430 stainless steel is commonly used for cost-sensitive internal parts due to its magnetic properties and machinability. No plating or coating is indicated in the source data, suggesting the finish is derived from the base metal's surface treatment. Typical operating temperatures range from -10°C to 60°C, consistent with standard door hardware specifications.

These locks are primarily purchased by distributors serving residential construction, office fit-outs, and light industrial storage facilities. Buyers commonly require batch sizes of 500 units or more for inventory stocking. Packaging is typically bulk-packed in cartons of 100 or 500 units, with no mention of individual blister packs or retail-ready packaging. Trade terms such as FOB Guangzhou or CIF destination ports are standard, but exact MOQ and lead time must be confirmed directly with the supplier.

Rongtai Hardwear is based in Guangzhou Baiyun District, Guangdong, China, with a physical address listed on the platform. The supplier is classified as imported and holds a harbor trust tier, indicating some level of verification through logistics or export documentation. There is no public data on years in operation, employee count, or factory size. The listing does not mention certifications, client names, or export history beyond the product description.

The company appears to specialize in metal hardware components, with this listing representing one of several product lines. Response rate and average response time are not recorded, suggesting limited buyer engagement or automated communication. No claims are made regarding in-house design, R&D, or custom manufacturing capabilities. Buyers should treat this as a trading or manufacturing entity with no verifiable history beyond the product data provided.