When the blind bolt is used for tightening, the following five factors are generally considered: thickness of product workpiece, hole size, bolt standard, riveting raw materials and special tools for bolt installation. Therefore, the selection of proper blind bolt must comprehensively consider the five elements mentioned above. The following blind bolt manufacturer details these five elements to anyone:

Thickness of product workpiece: the thickness of product workpiece is the total thickness of bolt component. The thickness of the total product workpiece determines which length of the blind bolt is used to profit the cutting and drawing value of the riveting connector, and also defines the appropriate bolt length that should exist in addition to the total product thickness of the blind bolt. When riveting is fixed, it is sufficient to hold the blind bolt head of the opening.

The nominal diameter blind bolt of thread indicates the larger thickness of the workpiece according to the part number. Take the open mouth blind bolt 44 as an example, a number 4 indicates the diameter of the blind bolt, the number of bases is 32, and 4 indicates 4 / 32 inch. The second number 4 indicates that the total product thickness of the blind bolt connector is the larger thickness of the workpiece, the number is 16, while 4 indicates 4 / 16 inch.

Diameter specification: the diameter of the workpiece must be appropriate, and the bolt standard of the blind bolt of the triple blind rivet must be excellent, so that the blind bolt can produce the suitable cutting and drawing value after the bolt.

Bolt standard: the bolt hole is very important for the cutting and drawing of blind bolt. When the bolt is pulled and riveted, the bolt hole is inserted into the bolt body, which will cause a gap at the side of the bolt empty pipe bolt, and in some cases, the component is pulled out, which greatly reduces. Compressive strength of Lashin bolt.

Riveting joint raw material: blind bolt is used for riveting components with different raw materials at present stage. If the use of countersunk rivet programming design is not good, some raw materials will cause problems to the blind bolt users. Riveting of steel and leather products is an example. In the composition and application of double warping and leather products riveting, soft raw materials must be placed on the plan of the boss rather than the side of riveting. The large convex surface of blind bolt is not easy to reduce the soft raw material relative to the top of round head. If it is necessary to place it on the surface of the large flange of the blind bolt, it is suggested to put the core on the side where the bolt is turned out. The sealing ring is used for bolts. When riveting thin metal composite materials, the square of metal sheet in the actual operation part must be determined.