Ristow FAQs


How do I change my shipping address once my order is placed?  

We can only update your shipping address before shipment. To ensure that your package can be properly delivered, please ensure that your address is complete and correct with all information including apartment/suite/room numbers. Once your package shipped, we will not be able to change the shipping address. And we are unable to cancel an order after shipment. Please keep an eye on your order status by checking “My Orders” to make sure you can receive your order.


How long does it take for my order to ship?  

When you place an order with RISTOW we will have to process the order first. Processing usually takes 1-2 business days for your order. We will send you an email if the processing for your order takes longer than expected. Shipping time will depend on which country you reside in.


How long will it take my order to arrive?  

Here at RISTOW, we take pride and strive to make sure all packages are delivered in a timely manner. You should receive your order within 3-7 business days depending on what country you reside in from the date your order was placed. You can also track your order by the shipped notice email.


Do all of your items ship from the China?  

RISTOW has multiple warehouses all over the USA. Your items will be shipped by system auto detect and stock that you ordered.


What should I do if I did not receive a confirmation email?

If you have not received a confirmation email about your order, it’s may be the network issue with sending the email, you can contact us


What should I do when tracking updates show my package was returned?

Please contact the shipping company and remember to provide your tracking number to find out more information. If you still cannot find your package, please contact us as soon as possible by submitting a ticket. We will be more than happy to resolve this issue.


Why hasn’t my shipping information been updated?

Sometimes it takes the information some time to update. If your shipment is from our international warehouses, it is in transit or clearing customs and the information will not be updated until it reaches next shipping station (may need 1-7 days). Sometimes the shipping company has not updated the package information.


Why is the tracking number not working?

When we ship our packages to you there are no further updates from the shipping company due to the fact that your package is in transit. Once it has reached the next sort facility it will update. It may take a couple of days (1-7 days) to see any activity once it has shipped out from our end.


How to change my shipping address?

If you want to change your shipping address, please contact us as soon as possible with your order number. But must be before the package are not



Why was my payment declined?

RISTOW accepts PayPal. Please ensure that you have not reached the card limit or if the card is currently being reviewed by your bank. In the case that your payment is still refused, we suggest trying a different card or payment method. If the above instructions fail, please contact your bank or contact us with as much detail along with the error messages. so that we may assist you.


What currencies do you accept for payment?  

Answer We accept the following currencies: US Dollar.

Why am I being asked to authorize my order?  

Detailed personal information may be required to authorize your order. If you have been asked to authorize your order it has been randomly selected and placed on hold by our fraud prevention team for further verification. It is our responsibility to protect our shoppers from any unwanted billings. If the order has not been authorized after one week, we are forced to believe it is fraudulent and the order will be subject to cancellation without further notice.


Do you offer Cash on Delivery (COD)?  

Answer We do not currently provide cash on delivery. We will notify customers in time if we provide cash on delivery. Please subscribe to us at the bottom of the website to get the latest news.


How do I return an item?

Please contact us with your order number and your return reason. We will as soon as possible give a feedback to you. thank you!


Why does the box break?

Before the product is shipped, we will do a careful inspection to make sure that the package is intact before it is sent. There may be a collision during transportation and the box may be damaged. In response to this problem, we have upgraded the thicker version of the box.


Why the type of screw purchased is not suitable?

Customers need to determine whether the product they need is metric, imperial or American before purchasing.


Why is there oil on the screws?

When making screws, the machine uses anti-rust oil. Make the screw thread more precise and not easy to rust.


Some brands of screws are easy to break, will RISTOW screws too?

  1. Material hardness is large (close to screw hardness)
    a.304 stainless steel hardness standard: Brinell hardness: ≤187HB; Rockwell hardness ≤90HRB; Vickers hardness ≤200HV
    b. 10.9-grade screws, Vickers hardness HV320-380, Brinell hardness HBS304-361, Rockwell hardness HRC32-39
    2. The method of use is a wrong-for example when tightening, the screw does not advance along the bottom hole, but a little outside.
    3. The bottom hole is too small, resulting in excessive tightening force. Screw break


Why can 304 stainless steel screws be sucked up with magnets?

After 304 stainless steel is cold worked, the structure will also be transformed into martensite. The greater the degree of cold working deformation, the greater the martensite transformation and the greater the magnetic properties of the steel. Like a batch of steel belts, Φ76 pipes are produced without obvious magnetic induction, and Φ9.5 pipes are produced. Because the bending deformation is larger, the magnetic induction is more obvious. The deformation of the square rectangular tube is larger than that of the round tube, especially the corner part, the deformation is more intense and the magnetism is more obvious.


Why do 304 stainless steel screws still rust?

  1. Stainless steel corrodes quickly in the presence of chloride ions, even exceeding that of ordinary low-carbon steel.
  2. In solid solution treatment, the alloy elements are not dissolved into the matrix, resulting in low alloy content in the matrix structure and poor corrosion resistance.
  3. After 304 stainless steel deep processing or grinding of processed products, wire-mounted or dot-like dent marks occur on the surface of the product.
  4. Intergranular corrosion. The precipitation of carbides in stainless steel may cause stainless steel to produce intergranular corrosion in some environments.
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