A double-stacked self-locking washer is a special mechanical connector designed to prevent bolts from loosening, especially in high-vibration or high-load environments.It consists of two spring washers nested inside each other in an S-shaped configuration. The outer spring washer has ends that bend inwards, while the inner spring washer has ends that bend outwards, creating a two-way self-locking feature.The working principle of this washer is based on elastic deformation. When placed between connecting parts, the inner curved part of the outer spring ring interlocks with the outer curved part of the inner spring ring, creating a locking force that prevents the connecting parts from loosening under vibration or load.The advantages of the double-stacked self-locking washer include high reliability, easy installation, and a wide range of applications.It is suitable for various mechanical connections, such as threaded connections and pin connections, and is widely used in industrial production and machinery manufacturing, especially in the automotive manufacturing process, where it is often used to connect engine and chassis systems to improve the safety and reliability of the car.
Drywall screw, tapping screw Size:M2.9-M4.8 Length:12mm-55mm, 1-3/4”～3”. Material: carbon steel Finish: white zinc plated, blue zinc plated, black phosphating , etc.
Metal Stamping parts products Can be made into different size according to customer’s requirements. Material: carbon steel, stainless steel,aluminum,copper,etc. Finish: white zinc plated, blue zinc plated, etc.
Finish ZINC PLATED Measurement system Metric Application Heavy Industry, Retail Industry, General Industry Place of Origin China Hebei Standard DIN ASTM BSW GB Product name Rivet Nut Material Carbon Steel , Stainless Steel manner of packing Carton or according to customer requirements port of shipment Tianjin Port
Hexagon nuts are used in conjunction with bolts and screws to connect and tighten mechanical components. Among them, 1 Hexagonal high-strength nuts are the most widely used, while C-grade high-strength nuts are used for machines with rough surfaces and low precision requirements
Butterfly buckles and double ring buckles (also known as butterfly buckles, connecting rings, or linking rings) are mainly used to connect the chains, rings, and hooks in chain rigging. The design of this connecting ring allows for the pivot connection of a rotating ring body at each end of a connecting ring body. Its characteristic is that the body is a hollow cylindrical body, and the two rotating ring bodies are formed by a protruding embedded part at one end of a linear rod, and the other end is bent into a ring and then wound around a straight section for positioning.
Product Name Colorful Hex Acorn Cap Dome Nut DIN1587 304 Stainless Steel Red Black Blue Grey CapNut Finish Silver,Plain, black, zinc plated/according to your requirement Material Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum and So on Size M3-M24,or non-standard as request&design Standard GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc Grade 4.8,8.8,10.9,12.9.etc Certification ISO9001,DIN1587 Package according to customers requirement Lead Time 7-15 work days after order confirmed Notes Special specifications and marks can be made according to customers requirements;
Flat Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M64, 1/4-2-1/2 Standard: DIN125,ASTM F436 ,ISO 7089,GB/T97 Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, plain,black oxide, etc.
Material Steel/Alloy/Bronze/Iron/ Carbon steel/etc Grade 4.8/ 6.8 /8.8 /10.9 /12.9 specification M0.8-M12 or 0#-1/2″ and we also produce according to customer’s requirement Standard ISO,DIN,JIS,ANSI/ASME,BS/Custom Color We can provide customized services according to your needs Surface Treatment We can provide customized services according to your needs Product Wheel / Lug Nut Mark According to customer’s requirement Package Cartons&pallets or according to customer’s requirement.
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
A jack is a lightweight lifting device that uses a steel lifting element as a working device to lift heavy objects within its travel through a top support or bottom support claw. Mainly used in factories, mines, transportation and other departments as vehicle repair and other lifting, support and other work. Its structure is lightweight, sturdy, flexible and reliable, and can be carried and operated by one person.
Flange nut, also known as washer nut, serrated nut, hexagonal flange nut, flange nut, etc. Mostly used for pipeline connections or workpieces that require increasing nut contact surfaces.
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
Product Name: Lifting Eye Bolts DIN 580 – 2018 Standard: DIN 580 – 2018 Material: Carbon steel and stainless steel Size: Reference standards and according to customer requirements Finished: Zinc Plated,Hot Dip Galvanized Steel,Dacromet,Nickel Plated,Black Oxide,Plain Delivery time: 15-30days after prepayment
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
