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Product description: Hexagonal tail punch bolts are also called opening holes and safety hole screws. Common standards include GB/T31.1. They are mainly used to prevent the workpiece from loosening after the equipment is fastened and connected. They are mainly used to prevent the bolts from vibrating and loosening during use, so they are also called safety hole screws.
| Product Name | Hexagon head screw with hole |
| Material | Carton steel,Stainless steel |
| Surface Finish | Yellow zinc, Blackened, Blue and white zinc, Dacromet，HDG |
| Colour | Yellow, Black, Blue White, White |
| Standard Number | DIN,ASME,ASNI,ISO,GB |
| Grade | 4.8 5.8 8.8 10.9 A2-70 |
| Diameter | M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M36 M42 M48 |
| Thread form | Coarse thread, Fine thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| 1.Product description: Hexagonal tail punch bolts are also called opening holes and safety hole screws. Common standards include GB/T31.1. They are mainly used to prevent the workpiece from loosening after the equipment is fastened and connected. They are mainly used to prevent the bolts from vibrating and loosening during use, so they are also called safety hole screws. | |
| Thread Spec d |
M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | (M27) | M30 | M36 | M42 | M48 | |
| P | Pitch | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 | 4.5 | 5 |
| d1 | Max | 1.85 | 2.25 | 2.75 | 3.5 | 3.5 | 4.3 | 4.3 | 4.3 | 5.3 | 5.3 | 5.3 | 6.66 | 6.66 | 8.36 | 8.36 |
| Min | 1.6 | 2 | 2.5 | 3.2 | 3.2 | 4 | 4 | 4 | 5 | 5 | 5 | 6.3 | 6.3 | 8 | 8 | |
| L1 | Nominal | 3.3 | 4 | 5 | 6 | 6.5 | 7 | 8 | ③ | 9 | 10 | 10 | 12 | 13 | 15 | 16 |
1. Drop in Anchor is a kind of expansion bolt, Drop in Anchor thread is long and easy to install, usually used for heavy load facilities, so it is widely used, many industries can basically be used, generally play a fixed role, suitable for concrete and dense natural stone, metal structure, metal sheet, floor, support plate, bracket, railing and so on. 2. Widely used : the end of the pipe stretched into the hole of the tube plate by theDrop in Anchor rolls, resulting in continuous expansion of the inner wall of the tube, resulting in plastic deformation, the diameter of the tube increases, the tube head is completely fitted to the hole wall of the tube plate, and the tube plate is forced to produce elastic deformation. When the tube expander is removed, the elastic deformation of the tube plate wants to return to its original state, and the plastic deformation of the tube end can not be recovered, and the result is that the tube plate holds the tube end tightly, so as to achieve the purpose of sealing and firmly connecting the two.
DIN127 spring washers are mainly used in bolt connections, especially in bolt connections with a strength grade of 5.8 or below. Its main purpose is to prevent bolt loosening by increasing the axial rebound force to compensate for the loss of preload force caused by compression, thereby preventing the loosening of threaded connections.
1.DIN6923 hexagon flange nut and general hexagon nut compared with the size and thread specifications are basically the same, but more than the hexagon nut with one ring flange, equivalent to the washer and nut are integrated, and there is a ring of non-slip tooth grain on the flange surface, also known as tooth flange nut. 2. Widely used : hexagon flange nuts mainly play a role in increasing the contact surface with the workpiece, mostly used in pipelines, fasteners and some stamping parts and casting parts. The flange face of DIN6923 flange nut itself has the function of anti-slip and stop, and it does not need to add flat pad and spring pad when assembling, which is more convenient to use
1.Eye wood screws, also known as sheep eye, sheep eye ring, sheep eye nail, sheep eye bolt, etc., have flat head, pointed head, open head and closed head. The welding methods of eye wood screws are spot welding and full welding. 2. Wide application: Eye wood screws are widely used as accessories for hanging accessories and are also one of the commonly used hardware accessories for architectural decoration.They are used to fix and connect various decorative materials.Eye wood screws are also widely used in ports, electric power, steel, shipbuilding, petrochemicals, mining, railways, construction, metallurgy and chemical industry, automobile manufacturing, plastic machinery, industrial control, highways, large-scale transportation, pipeline auxiliary installation, slope tunnels, shaft management and protection, maritime rescue, marine engineering, airport construction, bridges, aviation, aerospace, venues and other important industries as well as mechanical equipment of infrastructure projects.
1.Slotted round head wood screws are a type of fastener designed specifically for use in wood connections. 2.Strong fixing ability: Compared with ordinary nails, slotted round head wood screws have stronger fixing ability and can connect wooden parts together more firmly. 3.Easy to remove: Due to their design, slotted round head wood screws can be easily removed when needed without causing too much damage to the wood. 4.Aesthetics: The semicircular head design allows the screw to maintain a good level of flatness with the surface after installation, improving the overall aesthetics. 5. Wide application: Slotted round head wood screws are widely used in many fields due to their unique design.Slotted round head wood screws are widely used in many fields due to their unique design. For example, they can be used to connect and fix wooden boards in furniture manufacturing, house decoration and mechanical equipment, and are also commonly used to install various hardware accessories, such as hinges and hooks.
The T-bolt can be directly placed into the aluminum profile groove, and it can automatically position and lock during installation. It is often used in conjunction with flange nuts and is a standard matching connector for installing corner pieces. It can be selected and used according to the width of the profile groove and different series of profiles.
The cage nut has a high-strength thread fastening effect, can provide sufficient load-bearing capacity, and ensure the stability of the connection. Use a special tool to put it into the pre-pierced square hole, withdraw the tool to fix it on the metal or other plate, and install it quickly and conveniently. It can be disassembled and repositioned, and can also be tilted and fixed.
1.The surface is smooth and burr-free, the thread is clear and complete, the force is even, and the installation is convenient and quick. 2.There are a wide variety of models and sizes, from small to large, from long to short, to meet the needs of different customers. 3.The biggest feature of drywall screws in appearance is the trumpet head shape. They are divided into double-line fine-thread drywall screws and single-line coarse-thread drywall screws. The biggest difference between the two is that the former has double threads. 3.Product application scenarios: light steel keel, gypsum board, wood fixing, furniture repair
In the construction industry, square head bolts are used to fix steel mesh to ensure the stability of building structures. In mechanical manufacturing, square head bolts are used to connect various components of mechanical equipment, such as bearing covers, gearboxes, etc. In the automotive industry, square head bolts are used to secure components such as the vehicle body and engine, ensuring the safety performance of the vehicle. In furniture production, square head bolts are used to connect various parts of wooden furniture, improving the stability of the furniture. In electrical engineering, square head bolts are used to secure cable supports, switchgear, and other equipment to ensure the safe operation of circuits.
The outer tongue stop washer can distribute the load on the screw or bolt to a larger surface, thereby reducing the possibility of loosening and improving the reliability of the connection. During the assembly process, the outer tongue stop washer can serve as a buffer and protection to prevent scratches and damage to threads, surfaces, and parts.
GB62.2 Butterfly Nut (Square Wing Butterfly Nut) is mainly used in occasions that require frequent disassembly and installation, especially suitable for furniture, mechanical equipment, and automotive fields. Its design features include flat square wings on both sides, allowing the nut to be easily rotated by fingers without the need for tools, thereby improving the convenience and efficiency of operation.
1. The characteristics of the Cup Head Square Neck Bolts are that the head is made into a semi-round ball, a square neck is made under the head, and a square hole is also made correspondingly on the connected parts connected with such bolts. When the bolt is inserted into the connecting piece and then screwed on the nut, the bolt will not rotate due to the square neck. Its head is relatively smooth, and it is not easy to hook other objects. 2. Cup Head Square Neck Bolts is mainly used for connecting parts due to structural limitations are not suitable for hex bolts or bolts are required to have a smooth exposed part of the occasion. Such as the feet of agricultural machinery, wall panels and other places. The bolt is divided into two kinds according to the head size: ordinary and large half round head. The head of the large Cup Head Square Neck Bolts is straight and the diameter is large, but its thickness is slightly thin. This kind of bolt is mostly used in trucks, barges, iron and wood looms, and other wooden structural parts, because the head support surface is large, it is not easy to fall into the wooden connector.
Specification:①Thickened multifunctional angle code ②Ordinary multifunctional angle code Instalation scope:used for all kinds of tables,chairs,beds,laminated cabinet,etc.
Surface treatment: In order to improve the corrosion resistance, the joint bolts can adopt a variety of surface treatment methods, such as hot-dip galvanizing, infiltration plating, white plating, color plating, etc. In addition, high-strength bolts are usually treated with boiled black blue to enhance their appearance and corrosion resistance.
1.DIN7504K refers to a self-drilling screw with a hexagonal head, a flanged head, and a pointed end.The tail of a self-drilling screw is different from that of an ordinary screw. It is not a pointed tail, but is like a drill bit. This tail allows the screw to drill holes by itself without the need for pre-made holes when screwing into steel plates, wood, etc. 2. Advantages: The biggest advantage is that it does not require auxiliary processing, and can be directly drilled and tapped on the material, which greatly saves construction time. In addition, DIN7504K has higher toughness and maintenance, and will not easily loosen after long-term use, thereby enhancing the stability of the structure. 3. Wide application: Hex self-drilling screws are widely used in the construction industry, especially in the fixing of color steel tiles on steel structures. Because of their easy and firm installation, they can effectively improve construction efficiency and quality. In addition, hexa self-drilling screws are also commonly used to fix thin plates in simple buildings, showing their practicality in a variety of construction environments.
1. T-head bolts are characterized by high load carrying capacity and tensile strength, and can be used in a variety of different environments. Because of their unique shape, T-bolts can be easily used with nuts and washers, which allows for better load distribution and less stress concentration. In addition, T-bolts also have good seismic performance and can be used in vibration and shock environments. 2. T-head bolts have a wide range of uses and can be used to fix various equipment and components, such as machine frames, panels, supports, guides and so on. It can also be used in Bridges, construction, automobiles, ships and other fields. In these fields, T-bolts are widely used in a variety of structural connection and fastening occasions.
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