1.The sleeve anchor allows it to anchor into concrete, bricks and blocks. The sleeve anchor works when you insert the sleeve anchor into the pre-drilled hole in the substrate and then turn the nut to pull the working end of the sleeve anchor up through the sleeve. The anchor is then expanded and firmly anchored into the concrete, brick or block. The anchors are available in galvanized and stainless steel. The sleeve anchor is fully assembled and ready to use. 2.Suitable for all kinds of steel structures, cable lines, brackets, gates, stairs, steel ladders and other building components that bear heavy loads of vibration, with reliable post-expansion function for earthquake resistance and durability.

1. Metal-frame anchor are mainly used for expansion anchors of doors and windows. The product is mainly composed of expansion tube screw taper nut.It can firmly fix machines, doors and windows, structural parts, equipment or various appliances on walls, bases or concrete foundations. 2. Advantage: Metal frame anchors have many advantages such as simple installation, firm fixation and convenient construction. 3. Application: Metal frame anchors are widely used in many industries, such as door and window installation, floor installation, fixing heavy objects, etc. In the decoration industry, they can be used to fix decoration materials.

1. How to use：When using the wedge anchor, you need to first use an impact electric drill to drill a hole of the corresponding size on the fixed body, then install the bolt and expansion tube into the hole, and tighten the nut to expand the bolt, expansion tube, mounting piece and fixed body into one. 2. Characteristics: Wedge Anchors do not have high requirements for the depth and cleanliness of concrete cavities and are easy to install. 3. Application: Wedge anchors are usually used in heavy-duty facilities and are suitable for concrete and dense natural stone, metal structures, metal profiles, base plates, support plates, brackets, railings, windows, curtain walls, machines, beams, girders, brackets, etc.

DIN 125 is the standard for plain flat washers, widely matched with hex bolts, nuts and screws for mechanical and construction fastening. It is a basic auxiliary fastener used to increase bearing area, distribute pressure, prevent loosening and protect surface from damage during installation. Standard Dimensions Inner diameter (ID): Match metric bolt sizes from M3 to M48 Outer diameter (OD), thickness strictly comply with DIN 125 standard Smooth flat surface, uniform thickness, no burrs Custom sizes and thickness available on request Key Features Increase contact area, reduce pressure on workpiece surface Prevent bolt/nut from sinking into soft materials Protect painted, plated or fragile surfaces from scratch and damage Improve fastening stability, assist anti‑loosening effect Perfectly matched with DIN 933 bolts and DIN 934 nuts Application Scenarios Widely used in machinery manufacturing, steel structure, construction engineering, electrical equipment, furniture hardware, automotive parts, pipeline fixing and general industrial assembly.

1. How to use: ① Drill a hole equal to the diameter of the anchor to the smallest size. ② Clear the hole and insert the anchor into the hole with a hammer ③ Tighten the nut to expand the anchor to fix the object 2. Application: ① Can be used for concrete, blocks, bricks, stones, steel structures, machines, doors, stairs, floors ② Can be used to repair the load of exterior walls or windows

DIN 933 is the standard for full‑thread hexagon head bolts, one of the most widely used general‑purpose fasteners in construction, machinery, automotive and industrial assembly. The bolt features a hexagonal head for easy torque installation with wrenches, and full‑length thread design to meet flexible fastening requirements. Material: Carbon steel (C1022 / 4.8 / 8.8 / 10.9 / 12.9 grade), Stainless steel A2‑50, A4‑80 Surface finish: Electro‑galvanized (white/yellow zinc), black oxide, hot‑dip galvanized, Ruspert coating Thread type: Metric coarse thread (M5–M48), pitch conforms to DIN standard Head width across flats: Strictly per DIN 933 standard, consistent with DIN 934 nut matching Thread: Full thread, full‑length threading for complete engagement Length range: 8mm–300mm, customized sizes available Full‑thread structure, flexible connection, suitable for various thickness assembly High precision thread, perfect matching with DIN 934 hex nuts Stable mechanical performance, anti‑loose, durable, strong load‑bearing capacity Multiple anti‑corrosion treatments for indoor and outdoor applications Application Scenarios Widely used in mechanical equipment, steel structure engineering, building construction, electrical installation, automotive parts, pipeline fixing, furniture hardware and general industrial assembly.

1. Spring washer can play a good anti-loosening and anti-vibration effect; 2. Mechanical equipment: spring washer is widely used in various mechanical equipment, such as bearings, bushings, screws, nuts and other connection parts, play the role of anti-loosening, shock absorption, sealing and so on. 3. Electronic products: In electronic equipment, spring washer is used to fix components and lines to prevent loosening and improve the reliability and stability of the equipment. 4. Auto parts: Spring gaskets are also widely used in auto parts, such as engines, transmissions, suspension systems, etc., which play a role in shock absorption, sealing, fixing and so on. 5. Household goods: In furniture, household appliances and other household goods, spring washer is used to fix parts, prevent noise, improve comfort and so on.

1. Core type expansion bolt is a common connector, widely used in construction, bridge, mechanical equipment and other fields. It has the advantages of simple installation, high bearing capacity, good seismic performance and so on 2 Core expansion is mainly used in buildings to install suspended ceilings, walls, steel structures, wire trough pipe supports, air pipes, door and window frames and other places that need to be fixed. The expansion anchor has the characteristics of simple installation, reliable, strong bearing capacity and wide application range. At the same time, it can also adjust the distance between the fixed object and the substrate by tightening the screws.

1. Characteristic: The wall thickness of the expansion tube is thicker than that of ordinary expansion bolts of the same specifications;The expansion tube is longer than that of ordinary expansion bolts of the same specifications;Several more knurled grooves are added to the expansion tube to increase the tensile strength;The size of the screw head is larger than that of the ordinary expansion bolt head;The matching washer is a large washer. 2. Requirements: The drill bit required for drilling should be 6 sizes larger than the product size. 3. Application:Elevator expansion anchors are a type of fastener specially used for elevator installation. They are usually made of high-quality steel and have strong seismic resistance and gripping power.

1. The eye lifting nut is a part that is used to tighten the nut together with the bolt or screw. It is an essential component for all manufacturing machinery.There is a thread under the nut, which can be drilled according to its different specifications and fixed with the screw.Eye lifting nuts are often used in conjunction with external threaded columns to lift various equipment, such as molds, chassis, motors, etc. 2. Wide application: Eye lifting nuts are widely used in many fields to provide safe and reliable connection, such as industrial lifting, aerospace, construction engineering and steel structure.

1. Determine bearing capacity: The diameter of the nut is directly related to its bearing capacity. Generally speaking, the larger the diameter, the stronger the load-bearing capacity of the nut. This means that when subjected to high loads, it is necessary to choose nuts with larger diameters 2. Impact on installation space: The diameter of the nut can also affect its installation space requirements. When designing mechanical structures, it is necessary to consider the diameter of the nut to ensure sufficient space for installation and operation. 3. Standardized production: The DIN934 standard specifies the diameter of nuts, which helps to achieve standardized production of nuts. Standardized production not only improves production efficiency, but also ensures the quality and interchangeability of nuts. The diameter parameter in DIN934 standard plays a key role in the application of nuts, which not only affects the function and performance of nuts, but also relates to the stability and safety of the entire mechanical structure.

Hex nuts are used in conjunction with bolts and screws to primarily connect and tighten mechanical components. Hexagonal nuts of different types and grades are suitable for different occasions to meet different precision and surface treatment requirements. Widely applicable, with strong fastening force, suitable for occasions requiring large operating space. ‌