198097, St. Petersburg, Trefoleva str., 2, litera BZH, room 1-N, room. 66


Nut cap DIN 1587, stainless steel A2, A4

Stainless steel fittings, piping and shut-off valves

DIN 1587 stainless cap nut

The cap nut DIN 1587 is a hexagonal nut, one of the ends of which is closed by a hemispherical protrusion. Cap nuts are screwed onto the ends of bolts, rods, screws. In addition to the connecting function, they are designed to perform the following tasks:

  • locking achieved by tightening the nut at the end of the bolt (stud, screw) until it stops;
  • protection. The cap closes the threaded hole, protecting the connection from moisture, dust, and corrosive substances. It prevents grease from getting into the components of the technological process in chemical, pharmaceutical and food industries, and also protects installers and other users from injury;
  • aesthetics. Stainless cap nuts look attractive and give the object (device, structure) a finished look. 

Stainless steel nut DIN 1587 is widely used in the installation of devices and structures in the engineering industries, instrumentation, automotive industry, in construction for facade decoration, in street design, etc. The material of manufacture allows you to use this type of fasteners for the installation of equipment and structures operating in conditions of high humidity, temperature and mechanical loads, aggressive environments.

ALFA-STAR company offers DIN 1587 cap nuts in A2 and A4 versions. The first option (food grade stainless steel) has high temperature resistance, excellent strength characteristics, good anti-corrosion properties and hygiene. A2 nuts are used in the installation of equipment and structures operating outdoors, at high humidity, in fresh water, as well as in low- and medium-aggressive environments. The A4 version belongs to the acid-resistant class and is intended for use in environments with increased aggressiveness: solutions of acids, alkalis, chlorine-containing substances, sea water.

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  • How to buy
  • Guarantees
  • Refund

You can contact the managers and place an order for the products you are interested in using one of the following methods:

  1. Call the office at one of the phone numbers indicated in the contacts and ask to make an invoice for the items you are interested in from the company's catalog. The sales department is open daily from 9.00 to 18.00.
  2. Send a request in the form of an email to alfa-stars@yandex.ru .

Experienced sales staff try to respond to phone calls as quickly as possible and process incoming requests as soon as possible. We value every customer, so we try to take into account all the wishes of customers. If it is necessary to clarify any information on the application, we will definitely contact you.

All products and seams fully comply with all established GOST and technical specifications.

The refund is made in agreement with the manager, the application is considered within 3 working days.


We are a manufacturer of our products, so the cost of goods depends only on the market value of the steel grade, you can get the best prices for standard and non-standard products from us.

We carry out orders for the manufacture of non-standard stainless steel products of any complexity, with the latest works you can read here

Delivery and payment:

We provide free delivery to the terminals of transport companies in St. Petersburg, or delivery to St. Petersburg at the address, so that you can receive the goods as conveniently as possible for yourself. Payment is made by bank transfer.