Screw Nails: GOST And Application, Drum Knurled And Other Nail Screws. What Are They For And How Are They Made?

2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09

Nails are considered to be a simple, but at the same time quite reliable type of fastener. People have been using them for hundreds of years. This irreplaceable fastening material is widely used in many types of construction and repair work, in the assembly of wooden and other structures, in packaging and furniture production. Are no exception and screw nails , the use of which is appropriate for domestic needs.

What is it and what is it for?

Screw nails are called universal hardware , with the help of which the craftsmen fasten wooden surfaces together. And also they find application during the construction of a residential or utility room, any structure. Externally, screw products are very similar to round ones - they also consist of a rod-cylinder, a head and a standard sharp end. And they are distinguished from ordinary nails only by the presence of a thread on the rod.

Practice has shown that screw hardware provides fastening, which is many times better than when using a construction nail . While driving a screw nail into a tree, the product rotates around its own axis. Thanks to this feature, the wood fibers are not damaged and adhere well to the surface.

In this case, the strength of the fastener is facilitated by a high degree of friction and the peculiarities of the shape of the rod.

The main purpose of the screw product consists in fastening flexible surfaces and materials, for example, wood, wooden boards, structures that bend under the influence of moisture. This type of hardware has found its application in interior and exterior finishing works, manipulations with the roof, the manufacture of containers, furniture array, as well as in other types of work.

The production of wire screw nails is strictly regulated by the standards of GOST 283-75 . This document contains information about the accuracy of the parameters and characteristics of the product that can affect the quality of the product. According to GOST, this hardware is made from low-carbon raw materials with a square section.

The production process takes place on a machine; heat treatment is not required in this case.

Advantages of screw nails:

• strength;
• endurance of heavy loads;
• durability of use.

As evidenced by consumer reviews, some screw nails have been seen. limitations . This is:

• the impossibility of dismantling the connection due to the strong adhesion strength;
• susceptibility to corrosion;
• one-time use;
• high price.

Species overview

Screw nails are available in a wide range of types. They can be knurled or not. In addition, consumers can choose drum, four-way, and other types of such hardware.

• Black … This product is made from low carbon steel. It is customary to make fasteners with such nails under conditions of short-term use or in cases of low humidity in the place of operation of the fastened structure. Black nails are often used for interior decoration and flooring. And also this hardware can be found on boxes, euro pallets, pallets with a short period of operation.
• Galvanized … After the stamping process, these hardware are covered with a layer of zinc, 6 microns thick. Galvanized hardware has a long service life, therefore, they have found their application during the decoration not only inside, but also outside the premises. Often they are used when assembling roofs, constructing small architectural structures.

Among other things, screw-type nails have differences in the shape of the heads. According to this characteristic, two types can be distinguished.

1. WITH ordinary caps with a standard flat head proportional to the rod.
2. WITH secret heads in the form of a truncated cone. Thanks to this structural feature, the hardware sinks into the surface and becomes almost invisible.

Dimensions and weight

Since screw self-tapping screws are used in many jobs, the manufacturer offers consumers an assortment of this product with different sizes and weights. By examining the product labeling presented in the table below, you can learn in detail about these characteristics of the product.

Dimensions (edit)	Quantity in kg, pcs	Weight 100 units, kg
3, 4 by 40 mm	417	2, 341
3, 4 by 50 mm	339	2, 739
3, 4 by 60 mm	285	3, 662
3, 4 by 70 mm	246	4, 278
3, 4 by 80 mm	217	4, 893
3, 9 by 90 mm	143	10, 07
3, 8 by 100 mm	129	11, 203

The weight of the screw hardware is influenced by the presence of a protective galvanized coating.

Installation features

The use of screw fasteners is observed almost everywhere, since the presence of threads on them contributes to the adhesion strength. This hardware is hammered, so the craftsmen do not have any difficulties in using it.

When working with screw fasteners, experts recommend adhering to the following recommendations

1. During the installation, it will be more correct to nail a structural element, which has a thin surface, to a more dimensional element.
2. The diameter of the hardware should be no more than 1/4 of the fastening material.
3. The length of the fastener should be 2 or 3 times greater than the thickness of the material to be reinforced.
4. To prevent wood splitting, the nail is driven from the edge of the part at a distance equal to at least four rod diameters.
5. The convenience of driving nails is facilitated by a preliminary prick with an awl.

As practice has shown, the use of screw hardware provides a significant indicator of the strength of the fastening of materials , which is several times higher than the use of construction nails. This type of product can be called indispensable when working with a flexible surface.