Two Way Locking Door Knob With Keys For Main Door And Security Doors T587 Series

Product Specification:

  • Item: tubular knob lock
  • Item number: T587
  • Material: stainless steel
  • Color: SS/AB/AC/PB
  • Cylinder: brass
  • Cover: 75mm stainless iron
  • Keys: 3pcs iron keys
  • Function: ET/BK/PS/Dummy
  • Door thickness: standard 35mm to 45mm (1-3/8"to 1-3/4")
  • Backset: adjustable backset 60mm(2-3/8")to 70mm(2-3/4")
  • Included component: doorknob, screws, keys, latch, Installation Instructions

More About Our Product Details and Sale Services

Two Way Locking Door Knob T587 Video

Sample Charge

FREE two way locking door knob samples can be provided based on small products. For some custom items, we may charge some sample costs, and all the sample costs can be refunded back when you place the order in the future.


We accept T/T, western union, and online PayPal for the payment. Contact us freely if any doubt about payment.


  • We recommend door to door air shipping for a small package. it takes 3-7 days from our factory to your appointed place.
  • Sea shipping is recommended if time is not urgent and with large bulk cargo. it takes 7-35 days shipping time from Zhongshang, Guangzhou or Shenzhen port to your port.
  • We can arrange air shipping if you are requesting for it.

After-sale Service Warranty

We guarantee our quality on all of our items. item can be replaced if any quality problems.

Frequently Asked Questions About Zhongshan Tiffanthy

Q1. Are you a trading company or manufacturer?

Answer: Tiffanthy is one of the best door knobs manufacturers In China that started in 2008. Welcome to your visit.

Q2: Does your company provide the samples?

Answer: Yes, we can send the samples before shipping the goods or just for you to test the quality.

Q3: Can I OEM or print my own brand logo on your product?

Answer: OEM orders are highly welcome. Please write us the details of your logo color, logo position; user manual before you send us an inquiry, in this way we can offer you the most accurate answer for the first time.

Q4: Do you make customized products based on our design drawings?

Answer: Yes, of course, our factory is a professional OEM manufacturer of the handle with an experienced engineering team to produce custom handle depending on the client’s drawings or samples.

Q5: How do I pay for my purchase?

Answer: We accept the following payment methods: T/T, L/C, Western union, cash, and so on. Usually 30% T/T in advance, and balance before shipping.

Q6: How do you guarantee the quality of the product?

Answer: we pay a lot of attention to the quality of our products. Before the installation of the handle, our QC will strictly inspect the products.

Need Help For OEM & ODM Door Lock Service?

Our support teams are available to help with product requirements and answer any questions, please give us a call +86 -760- 22822296 or contact our team to discuss your requirments.