1.The head of the bolt is spherical with holes, the spherical surface is smooth, the installation of the Eye Bolts is relatively simple, and it is often used for the occasion of opening and disassembling or the tooling assembly.The thread precision of the Eye Bolts is high, which can improve the quality of the whole workpiece as an accessory. 2.Eye Bolts are widely used in: low temperature and high pressure valves, pressure pipelines, fluid engineering, oil drilling and production equipment, oilfield equipment and other fields, often in the disconnecting occasions or tools such as the valve industry, folding bicycles, strollers are used, because the use of Eye Bolts is convenient and fast, and the use of matching nuts plays the role of connection fastening, a wide range of applications.

Hex coupling nut is a slender hexagonal nut used to connect two threaded rods or bolts. It does not require tapping the internal thread, does not require welding the nut, has a strong riveting efficiency and is easy to use.

1. Preventing loosening: The main function of spring washers is to prevent loosening of fasteners (such as nuts and bolts) through their elasticity and oblique friction. When the nut is tightened, the spring washer is compressed, generating a reverse force that increases the friction between the nut and bolt, effectively preventing loosening 2. Reduce friction: Spring washers can also reduce friction between nuts and bolts, making fasteners less likely to loosen when subjected to vibration. This characteristic is particularly important for mechanical equipment that is frequently subjected to vibration or impact 3. Expand contact area: Although flat washers are mainly used to expand contact area and disperse pressure, spring washers can also play a similar role to some extent. Especially when the strength of the connected parts is low, using flat pads or flange bolts can increase the contact area, while spring washers can further prevent loosening 4. Special applications: In some special cases, the use of spring washers depends on specific engineering requirements.

DIN 934 is the most popular German standard metric hexagon full thread nut, widely used for matching with DIN 933 full thread bolts, DIN 912 socket head cap screws and other metric fasteners. It is a core standard fastener for mechanical assembly, steel structure and construction engineering. Manufactured with standard precision thread and regular hexagon shape, DIN934 nuts feature smooth threading, perfect fitting, stable locking performance and strong load-bearing capacity. All dimensions strictly comply with German industrial standards with high interchangeability. Product Features Standard metric coarse thread, precise thread pitch, no slipping during assembly Regular hexagonal structure, easy to install with wrench tools Uniform size tolerance, excellent interchangeability with global standard bolts High hardness and good toughness, stable fastening effect Multiple surface treatments for different indoor and outdoor working environments Material & Surface Treatment Material: Carbon steel (4.8 / 8.8 grade), Stainless steel A2(304), A4(316) Surface finish: White zinc, yellow zinc, black oxide, hot-dip galvanized, Ruspert Size Range Complete sizes from M3 to M48, customized non-standard sizes are available. Application Widely used in machinery equipment, steel structure buildings, construction engineering, electrical installations, automobile industry, pipeline fixation, furniture hardware and general industrial assembly.

1.The good expansion curve design greatly enhances the anchoring force of the anchor bolt, and the edge of the tube head can effectively prevent the expansion screw from entering the deep inside the hole due to drilling too deep 2. Widely used ‌ :Concrete, natural dense stone, solid brick, solid gray sand brick light concrete, hollow concrete brick, etc.;

1. Sheep eye screws, also known as sheep eye, sheep eye rings, sheep eye nails, sheep eye screws, etc., are widely used in jewelry, toys, craft gifts, a variety of wooden handles and other hanging accessories, and is also one of the commonly used hardware accessories for architectural decoration. 2. Widely used ‌ : the eye bolt has the hanging function, which can be used to hang architectural ornaments under the suspended ceiling of cement precast board, wood board, gypsum board, decorative board or other plates; The eye bolt has large section diameter, long screw and thread length, and is safe and stable and not easy to loose when installed on the ceiling

1. The automobile industry Because of their applicability in metal applications, hexagonal head screws are often used in the automotive machinery industry for fixing and connecting components. Hexagon head screws add a strong and reliable connection to a variety of automotive and mechanical parts, and their installation process is relatively simple, providing convenience for many workers. 2. Furniture and cabinets Furniture production is a key area that pays attention to the capability and durability of hexagonal head screws. Hexagonal head screws ensure the robustness of the connection and the desired effect in the long term. Standard hexagonal head parts are the perfect choice for furniture and cabinets, ensuring a rugged, high-quality connection.”

How to use:The new American-style core expansion nail only needs to make a 6mm hole on the ground or wall. The depth is the same as that of the expansion nail. Put the expansion nail into the hole and hammer the head of the expansion nail with a hammer. The tail of the core nail will expand during the hammering process. The nail will be tightly stuck in the casing and will not be pulled out. The use process saves time and effort, and is more beautiful than the pull-out screw. ① Drill a hole in the wall according to the size requirements; ②Insert the expansion screw through the fixed object into the hole; ③Hit the iron nail to expand the inside.

1.the small yellow croaker expansion screw is relatively strong, the small yellow croaker expansion screw tension is strong, can better play a fixed and stable role. When installing, be sure to tighten, screw in place, and then beat with a hammer, not only beautiful knot reliable with firm and stable fixed stable effect is particularly good. 2. especially suitable for hanging, arch structure, outdoor walls, stairs, radiators and other different occasions of columns, Angle steel, beams and other parts fixed and supported. The crosshead expansion screw is a kind of expansion screw, which is characterized by a variety of dimensions, convenient installation and firm fixing. Small yellow croaker expansion screw, the appearance is like a small fish, its main feature is shaped like a “hollow bolt” and has good expansion.

1It is mainly used to fix pipes such as water pipes or sheet springs such as automobiles, and its material characteristics, density, bending strength, impact toughness, compression strength, elastic modulus, tensile strength, temperature resistance and color are determined according to the use environment 2. U-type is generally used in trucks, it is used to stabilize the chassis and frame of the car. For example, leaf springs are connected with U-bolts. U-bolt is widely used, the main uses: construction installation, mechanical parts connection, vehicles, ships, Bridges, tunnels and railways.

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. The cap nut and stainless steel hexagonal slotted nut are matched with an open pin and threaded bolt with holes to withstand vibration and alternating loads, which can prevent the nut from loosening and coming out. 2. Cap shaped nuts with inserts, which rely on tightening the nut to tap the internal thread, can provide anti loosening effect and have good elasticity. The purpose of the 3-cap nut is the same as that of the hex nut. Its characteristic is that when assembling and disassembling, a wrench is used to clamp the main nut, which is not easy to slip. However, only an adjustable wrench, a fixed wrench, a dual-purpose wrench (for the opening part), or a specially designed square hole socket wrench can be used for assembly and disassembly. Mostly used on rough and simple components. 4. Cap nuts are suitable for high-strength fasteners, mechanical fasteners, furniture fasteners, vehicle fasteners, machining special-shaped parts, cold heading special-shaped fasteners, double headed foot U-wires, and building decoration fasteners