
Trim screws with large diameter washer heads are a type of fastener with a built-in washer that extends beyond the circumference of the basic head diameter. The round washer head design is considered one of the most versatile head designs available, combining the benefits of a pan head with a larger bearing surface area. This type of screw is commonly used in the furniture industry for attaching drawer guides and tops to side panels, as well as in cabinetry for mounting wall and base cabinets. They can also be used for attaching drawer fronts to the drawer box, as the extra-large head allows for an oversized hole to be drilled. Trim screws with large diameter washer heads typically come in various lengths, such as 1-1/4 inch, 1-1/2 inch, and 2-1/2 inch, and are made from materials like zinc and steel.
Characteristics | Values |
---|---|
Screw Length | 1-1/2 in, 1-1/4 in, 2-1/2 in, 1 in, 1-1/8 in, 3 in, 6 in |
Head Style | Washer Head, Round Washer Head, Wafer Head, Oval Head |
Head Diameter | 0.5 in |
Screw Type | Wood Screw, Sheet Metal Screw, Cabinet Screw, Pocket-Hole Screw, Timber Screw |
Drive Type | Phillips, Square, T-Star Plus, Star Drive, External Hex Drive |
Material | Zinc, Steel, Bronze |
Finish | Zinc Plated, Y-Zinc Plated, Black, Yellow Zinc |
Features | Self-Drilling, Sharp Point, Low Profile, Flat Top Surface, Countersunk Head |
Pack Size | 2, 50, 60, 80, 100, 120, 330, 360, 675, 12000 |
What You'll Learn
Phillips/Square Combo
The Phillips/Square Combo drive system is a versatile and dependable fastening solution. It combines the benefits of both Phillips and Square drive types, offering convenience and after-market serviceability along with the dependability of a square drive recess.
The Phillips/Square Combo is commonly used in applications such as hanging kitchen and bathroom cabinets, pocket-hole joinery in exterior projects, and attaching countertops. The large diameter washer head provides a greater bearing surface, making it especially useful when fastening soft materials. The flat bearing surface under the head prevents the screw from being countersunk, ensuring a secure and stable connection.
This screw type is typically made from zinc or zinc-coated steel, providing reasonable corrosion resistance. The zinc coating also gives the screws a visually appealing finish, making them suitable for a variety of applications.
The Phillips/Square Combo drive system is designed to provide a secure and reliable fastening method. The square drive recess provides dependability and reduced cam-out, while the Phillips drive offers convenience and the ability for after-market adjustments. This combination makes it a popular choice for builders and DIY enthusiasts alike.
The versatility of the Phillips/Square Combo drive system makes it a go-to choice for a wide range of projects, from cabinet installation to exterior joinery. The large diameter washer head ensures a strong and durable connection, even when working with soft materials. This screw type is a testament to the innovation and practicality that characterise the fastener industry.
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Zinc Coating
Zinc plating offers a cost-effective solution due to zinc's natural abundance and affordability compared to other metals used for plating. It is also recyclable and reusable, further reducing costs and making it a popular choice for manufacturing processes. Additionally, zinc plating provides a bright and attractive finish, enhancing the appearance of metal surfaces and making products more attractive to customers. The finish can vary from a lustre to a shiny appearance and comes in different colours, including clear, blue, yellow, and black.
While zinc coating offers excellent corrosion protection, it has limitations. For example, zinc typically performs poorly at high temperatures, with its corrosion protection abilities decreasing significantly above 212 degrees Fahrenheit. Additionally, distributing the coating evenly over the metal surface can be challenging, and plated surfaces may be susceptible to quick corrosion in areas prone to moisture.
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Trim Screws
The washer head design combines the advantages of a pan head with a built-in washer that extends beyond the circumference of the basic head diameter. This increased head diameter not only prevents overdriving in softwoods but also provides a large bearing surface, making it ideal for applications where a strong clamping force is required.
In addition to the standard round washer head, trim screws can also be found with a wafer-head design. This low-profile head is suitable for general wood-to-wood fastening and features a flat top surface, a countersunk head, and a conical-shaped bearing surface. Wafer-head trim screws are often used for hanging cabinets, door and window hardware, and brackets.
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Wafer Head
Wafer-head screws are used for attaching crate lids to crate bodies. They are also used for general wood-to-wood fastening where a low-profile head is required. They can be used for securing clips to wood used in standing-seam-roofing, and for hanging cabinets, door and window hardware, and brackets.
The wafer-head screw features a flat top surface and a countersunk head, as well as a conical-shaped bearing surface. Some wafer-head screws have a small increase at the top of the head to add extra strength around the recess for added driving power.
Wafer-head screws are available in a range of materials, including steel, zinc-plated steel, and stainless steel. They are also available in a range of sizes, including #8 x 1-1/4", #8 x 1-1/2", #8 x 1", #8 x 3/4", #10 x 2-1/2", and #10 x 3".
Wafer-head screws can be purchased with a Phillips head or a Torx/Star drive head.
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Wood Screws
Round Washer Head Wood Screws
The round washer head design is considered one of the most versatile head designs available for wood screws. It features a built-in washer that extends beyond the basic head diameter, resulting in a larger bearing surface. This flat bearing surface prevents the screw from being countersunk, making it especially useful when fastening soft materials. The round washer head design is commonly used for hanging kitchen and bathroom cabinets and for pocket-hole joinery in exterior projects. They are also ideal for attaching countertops and drawer fronts to box-style drawers.
Wafer Head Wood Screws
The wafer-head wood screw is suitable for general wood-to-wood fastening where a low-profile head is required. It typically features a flat top surface, a countersunk head, and a conical-shaped bearing surface. Some wafer head screws have a slight increase in the top of the head to provide extra strength and driving power. This type of wood screw is commonly used for applications that require extra clamping force, such as hanging cabinets, door hardware, and window hardware.
Specifications
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Frequently asked questions
It is a type of screw with a large diameter washer head that is used for fastening wood to wood.
They are commonly used in the furniture industry for attaching wood drawer guides and tops to side panels. They are also popular in cabinetry for mounting wall and base cabinets.
The large diameter washer head provides a maximum bearing surface and helps to prevent overdriving in softwoods. It also covers any oversized holes drilled in the drawer box during alignment.
There are two main types: the pan head and the round head. The round head design is considered to be more versatile as it combines the advantages of the pan head with the added benefit of a washer to increase the head diameter.
Trim screw large diameter washer heads can be purchased from hardware stores such as The Home Depot and Rapid Start.