Deadbolt Screw Flat

Product No: 417520


Flat Screws are used to attach accessories to the steel backplate. Their size and shape make them perfect for the backrest holes.

Product Information


Stainless Steel Flat Screws are used to attach additional accessories to the XR harness. The flat head fits perfectly into the holes of the steel backrest. Often used to lock the fastening straps of the watertight cylinder
The key features of the Flat Screws are:

• 11 mm screw and flat head nut
• Sturdy and durable for all types of fixing
• Precision made in AISI 316 stainless steel
• 4 pieces (each piece is = 1 male + 1 female +1 o-ring)

Delivery & Returns


Online purchases on are enabled for Italy, France, Spain, Germany and Austria. Some products from the catalogue are only available to purchase at an authorised Mares Dealer.

Products shipped in Italy are entrusted to Bartolini couriers. Products shipped in France, Spain Germany and Austria are entrusted to DHL couriers.

Delivery times are 3-5 working days.



If you are not satisfied with your order, you can return it quickly and easily.

You can decide to return any products purchased on within 30 days of delivery. To return items, use the same box they were received in, complete the returns label found here with shipping details and attach it to the box. Remember to insert the delivery number found on page 1 of the delivery documents.


To allow you greater freedom, we have not chosen a courier service with which you need to return the package, you are free to choose your preferred service provider.

Please remember that shipping costs are your responsibility.


At the moment, we cannot offer exchanges on our products. If you would like a different size, please return the article for a refund and purchase a new size. If you still have any doubts, you can write us an email at, our Customer Service team will be happy to help.