1 4 20 double end stud

When using 50 mm chipboard screws, it's essential to pre-drill holes to prevent splitting and to guide the screw for straight insertion. The pre-drilled hole should be slightly smaller than the screw's shank to allow for a tight fit The pre-drilled hole should be slightly smaller than the screw's shank to allow for a tight fit The pre-drilled hole should be slightly smaller than the screw's shank to allow for a tight fit The pre-drilled hole should be slightly smaller than the screw's shank to allow for a tight fit50 mm chipboard screws. It's also advisable to use a screwdriver or drill with a clutch setting to prevent over-tightening, which could damage the board or strip the screw threads.

...

One of the primary benefits of butterfly screws is their efficiency. Their ergonomic shape enables users to apply torque with ease, making them ideal for applications where frequent assembly and disassembly are necessary. This is particularly useful in industries such as automotive, furniture manufacturing, and even in home DIY projects. The ability to quickly tighten or loosen without tools saves time, effort, and reduces the risk of damage that can occur with the use of incorrect or over-tightened tools.

...