#8 x 3 inch flat head assembly screw defines a long, narrow fastener that joins materials where extra reach is needed, which matters when pulling thicker cabinet or woodworking components together without switching to larger diameters. The flat head design lets the screw sit flush with the surface, so workpieces stack or align cleanly in assemblies that need a smooth face for hinges or other hardware. The square drive works with #2 square drive bits, giving a positive drive interface that helps keep the bit engaged in the recess during installation on vertical panels or overhead runs. The coarse thread configuration grips quickly in typical woodworking substrates, which is important when drawing parts together in fewer turns during repeated cabinet or fixture builds. The zinc finish on this screw provides a clean, metal-plated exterior that suits general woodworking environments where a bright, uniform appearance is preferred on fastener heads.
This screw uses #2 square drive bits, so the drive interface is set up for installers already working with square drive tooling in shop or field situations. The Type 17 auger point at the tip is designed to start more easily into material, which helps the screw cut its way in as drive torque is applied rather than relying solely on high pressure at the start. The coarse thread extends along the shank in a way that improves grip in common woodworking materials, drawing parts together as the screw advances. The 3 inch overall length gives working reach through face frames, cleats, or built-up components, making this screw suited to joints where deeper penetration is needed for holding strength. The flat head form allows the head to nest into countersunk holes, helping assembled faces stay smooth for later finishing or hardware fitting.
The #8 x 3 inch flat head assembly screw is positioned for cabinet and general woodworking tasks where a longer reach is useful. The coarse thread layout works well in typical wood-based materials, so the screw can pull together case sides, stretchers, or cleats during cabinet box builds. The flat head design supports countersunk mounting into rails or panels, leaving a surface that is ready for later sanding or finishing steps without protruding fastener heads. The use of #2 square drive bits means the screw can be driven with common square drive tooling, which is common in woodworking shops that standardize on that interface for repetitive assembly work. The zinc finish on the screw supports use in interior woodworking environments where a bright, uniform head appearance is desirable on visible or semi-visible locations.
The combination of the Type 17 auger point and coarse thread helps the screw advance into material with less initial resistance, which supports more consistent starts across many fastenings on the line. This design lets the threads cut and clear material as they advance, which matters when working near edges or ends where splitting is a concern. The #8 diameter keeps the shank relatively slim, supporting use in tighter layouts such as face frames or narrow stock while still providing the 3 inch reach needed for deeper joints. The square drive recess is shaped to accept #2 square drive bits with firm engagement, helping maintain control and reducing the tendency for the bit to slip out of the recess during high-torque driving. Because the screw is flat headed, it can be driven until the head seats into a countersunk pocket, which gives a repeatable visual cue for depth and helps keep surfaces consistent across multiple assemblies.
This Wurth #8 x 3 inch flat head assembly screw uses #2 square drive bits, which provides a secure driver engagement for repeated cabinet or woodworking installation work.
The screw measures 3 inches long, giving added reach to fasten through thicker cabinet parts or layered assemblies where deeper penetration is required.
The Type 17 auger point on this screw is designed to cut into the material as it starts, helping the threads begin pulling the joint together with smoother initial driving.
This assembly screw uses a coarse thread, which helps it bite quickly into typical woodworking materials and draw parts together efficiently during assembly tasks.
The screw is zinc finished, providing a bright, metal-plated surface that suits interior cabinet and woodworking environments where a clean fastener appearance is desired.
This screw is case hardened, meaning the outer layer is hardened during manufacturing, which supports better drive performance in typical assembly conditions.
This Wurth #8 x 3 inch flat head assembly screw combines a coarse thread, Type 17 auger point, and #2 square drive interface to support consistent fastening in cabinet and woodworking builds. The 3 inch length and #8 body give a balance of reach and slim profile, allowing use in thicker assemblies without oversizing the fastener. The zinc finish and flat head design support interior applications where flush seating and a clean head appearance matter. When a project needs a case hardened, square drive, coarse thread screw for deeper joints, this model provides a focused option for repeatable shop or jobsite use.
Sold In: 2000 Each
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