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. 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.

DIN125 Flat Washer  are mainly used to connect two objects, fill gaps, and play a role in sealing, supporting, and fastening. It is widely used in various mechanical equipment, pipeline systems and other connections, with good sealing performance and mechanical strength.

DIN125 gaskets are mainly used to connect two objects, fill gaps, and play a role in sealing, supporting, and fastening. It is widely used in various mechanical equipment, pipeline systems and other connections, with good sealing performance and mechanical strength.

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.

DIN125 gaskets are mainly used to connect two objects, fill gaps, and play a role in sealing, supporting, and fastening. It is widely used in various mechanical equipment, pipeline systems and other connections, with good sealing performance and mechanical strength.

DIN125 Flat Washer are mainly used to connect two objects, fill gaps, and play a role in sealing, supporting, and fastening. It is widely used in various mechanical equipment, pipeline systems and other connections, with good sealing performance and mechanical strength.

GB 853 square diagonal washers are mainly used for connecting channel steel, especially in situations where fastening is required along the groove direction of the channel steel. The GB 853 standard provides detailed specifications for the size range, tolerance requirements, material selection, and performance indicators of square diagonal washers for channel steel, ensuring that the washers can effectively disperse loads and prevent local stress concentration at the connection points.

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.