Raised countersunk head screws with cross recess DIN 966 UNI 7689 ISO 7047

Over time, classifications and nomenclatures for bolts have been defined to regulate their mechanical and physical characteristics, both at national and international levels. Specifically, the main standards for fasteners are ISO, DIN, and UNI....

In bolted connections subjected to continuous stresses, there is often a serious risk that the nut may loosen from the screw. For this reason, self-locking (or self-braking) nuts have been developed and designed....

Washers are a mechanical component that is generally placed between the nut of a bolt or under the head of a screw and the component to be locked. For many, this particular part is relegated to the task of increasing the locking of the bolted union t...

Anchor Bolts are elements used in various sectors, from construction to telecommunications, for the construction and securing of load-bearing structures. They can be made with different head and shank shapes, with various types of materials and surfa...

Washers are a mechanical item generally placed between the nut of a bolt and the object to be locked. Their main task is to distribute the clamping load over a larger surface than that covered by a bolt or screw (a very advantageous functionality wit...

Galvanizing is a process generally carried out on metallic artifacts, where a layer of zinc is applied as protection against corrosion. To achieve excellent results from the galvanizing process, it is fundamentally important to take into consideratio...

Disc Springs, a mechanical component within the washer family, are easily recognized by their distinctive conical shape, which gives the part elasticity and the capacity to absorb high loads even in a small housing space....

Tamper-proof screws, also known as security or anti-theft screws, are recognized by the special configuration of their head or type of drive. One of the advantages of this product is the vast array of combinations and options between the type of head...

Cotter pins are mechanical fastening elements that prevent a nut or pin from sliding out of its seat. There are several types of cotter pins, among the most commercially available we can find: standard, elastic, snap, and ring types....

Assembling objects, tools, or furniture is an activity that requires secure tightening, thus tightening the used elements to the right point. This activity cannot be left to chance but it is appropriate to know well the torque values of bolts, nuts, ...