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Anti-tamper screw with metric thread
A feature of this screw is non-standard slots on the head, which do not allow dismantling this fastener with a standard screwdriver or screwdriver.
A screw with a half-round head, an internal hexagon and a lead
Rivet GOST 10303-80 with transition of the rod thickness
One of the advantages of the Kalibr plant is the ability to manufacture specialized hardware products. Often this is necessary when one of the components of an industrial or household product is a non-serial fastener. For example: a secret or anti-vandal screw, a specialized rivet, a stud or an axle with individual geometric dimensions.The term of production of products according to the drawings will depend on the complexity of manufacturing, the selected material and production volumes. Also, all these parameters affect the price of the product. As a rule, the minimum volume for factory equipment is from 150 kg of one type of product. But we consider each request on an individual basis, so exceptions are possible.If you have a need for the production of serial non-standard metal products, we are always ready to consider the possibility of their production on mutually beneficial terms. Send a request with technical specifications and we will find a solution that suits you