Screws with pre-assembled washers are designed to simplify the installation process and ensure that the washer is always in the correct position. This feature reduces the likelihood of losing washers and speeds up assembly time, making them particularly useful in high-volume production environments or for DIY projects. The washers, which can be either flat or spring (lock) types, are securely attached to the screw, providing a stable base for the screw head and helping to distribute the load over a larger area. This not only prevents damage to the surface being fastened but also enhances the screw's resistance to vibration, ensuring a more secure and long-lasting connection.
Screws with pre-assembled washers are widely used in various applications where quick and reliable fastening is required. These include:
Automotive Industry: Used in the assembly of car parts, such as interior panels, trim, and other components, to ensure a secure and vibration-resistant fit.
Furniture Manufacturing: Ideal for assembling furniture, where they help distribute the load and prevent damage to wood or other materials.
Electronics and Appliances: Used in the assembly of electronic devices and appliances, where they provide a stable and secure connection.
Construction and Building: Useful in construction for attaching metal brackets, insulation, and other building materials, ensuring a strong and durable hold.
Industrial Equipment: Applied in the manufacturing and assembly of industrial machinery, where they help maintain the integrity of connections under high stress and vibration.
DIY Projects: Popular among DIY enthusiasts for their ease of use and reliability in various home improvement and repair tasks.
These screws are particularly beneficial in applications where frequent disassembly and reassembly are necessary, as the pre-attached washer ensures consistent performance and reduces the risk of losing small parts.
Materials and Processing
Steel, stainless steel, and zinc or phosphate coatings that improve corrosion resistance are common materials.
Common surface treatments
Dacromet, phosphating, blackening, soap phosphating, and galvanizing.
Nickel Plating Square Washer Two Combination Screw Slotted-Cross Recessed Round Head Sems Screw for PCB Mount Terminal Block
Nickel Plating Square Washer Combination Screw
Slotted-Cross Recessed Round Head Screw
Material: Carbon Steel, Titanium, Aluminum, Brass, etc.
Size: M1-M16
Head Type: Flat, JIS Pan, Oval, Round, Binding, I.HD, Brazier, PF. HD, Button, Fillister, Ansi.Pan, Pan washer,Hex, etc
Standard: ISO, GB, DIN, JIS, ANSI, BSW, ASME
Screw Drivers: Phillips, Slotted, Truss, Square, Crossed, Y-type, T-type, Torx, PZ drives, Hex socket,etc
Finishing: Zn- Plated, Ni-plated, Tin-Plated, Radiant Plated, Passivated, Brass plated, Cd- plated, Phosphate Anodize, Cr-plated, Black Oxide,etc
Heat Treatment: Tempering, Hardening, Spheroidizing, Stress Relieving, etc
We offer tailored screw solutions to your specific needs, with various options of materials, screw coatings, head/thread/point/shank types, and sizes.
