Common Types of Screw Heads and Their Uses
1. Flat Head: These titanium screws sit completely flush with the surface, without exposing any part of the screw head, so they require a countersunk head. They are commonly used in cabinets, countertops, stairs, furniture, drywall, and other parts of the construction industry.
2. Cross Head: These screws have a cross-shaped indentation on the head and require a cross-shaped screwdriver. They provide better torque transmission and are widely used in various applications, including electronics and household appliances.
3. Pozidriv: Similar to the Phillips screw, the Pozidriv has additional smaller cross-shaped indentations on each arm of the cross arm. They have a stronger resistance to back-out (slipping) and are commonly used in the construction and automotive industries.
4. Torx: These screws have a star-shaped groove on the head and require a corresponding Torx screwdriver. Torx screws are popular in the automotive, electronics, and computer hardware industries because they can provide higher torque transmission and reduce camming.
5. Hex/Hex: Hex screws have a hex socket in the head and require an Allen or hex wrench to drive them. They are often used in furniture assembly, bicycle components, and machinery.
6. Robertson/Square Head Screws: Robertson screws have a square socket in the head and require a square or Robertson screwdriver. They provide good torque transfer and are widely used in construction, carpentry, and electrical applications, especially in Canada.
7. Pan Head: Pan head screws have a rounded, dome-shaped head with a flat bottom. They are used when a low profile and smooth appearance is required, such as in electronics, cabinets, and interior fixtures.
8. Round Head Screws: titanium Round head screws have a rounded, low-profile head that is cylindrical with a flat top. They are often used in applications that require a neat and aesthetic appearance, such as furniture, automotive interiors, and decorative hardware.
9. Oval Head: Also called a convex head or round head screw, they have a rounded top surface and a tapered bottom surface. They usually have a slotted or cross-shaped drive. Oval head screws are commonly used in woodworking projects, furniture assembly, cabinets, general fastening, etc.
10. Binding head: Also known as binding head screws, it has a round, cylindrical head with a low profile and large diameter. The head has a slightly domed top and a small conical undercut underneath. Binding head screws are often used in bookbinding, leather goods, stationery, and DIY projects.
What is the difference between countersunk screw heads and non-countersunk screw heads?
Countersunk and non-countersunk are the two basic types of screw head designs. Non-countersunk include binding heads, button heads, barrel heads, round heads, flange heads, hexagonal heads, pan heads, round, square, truss, etc., while countersunk designs mainly include flat heads, oval, and horn heads.
The countersunk titanium screw head is designed to be flush with or slightly below the surface of the material after it is fully installed. It has a tapered shape with a tapered groove on the top. The purpose of the countersunk hole is to form a smooth and even surface after tightening the screw. When a countersunk screw is fully installed, the head will be flush with or slightly below the surface of the material, allowing for a more seamless look. Countersunk screws are often used when a flat, smooth surface is desired, and they are often used in woodworking, cabinetry, and in applications where beauty and clean lines are important.
On the other hand, non-countersunk screw heads do not have a tapered shape or recessed top, and the head is completely exposed. They are not designed to sit flush with the surface of the material. Instead, they have a larger, flat, or rounded head that remains visible once the screw is fully tightened. Non-countersunk screw heads are often used when the appearance of the screw is not a concern and a protruding or raised head is acceptable or necessary. These titanium screws are often used in construction, metalworking, and applications where strength, durability, and function are the primary concerns rather than aesthetics.
