How do I install lag screws?

Answer Drill a pilot hole about 2/3 of the length of the screw using a drill bit that is about 1/8th less than its diameter. Slide a washer along the shank of the screw and insert it into the hole. Begin ... Read More »

Top Q&A For: How do I install lag screws

How do you install a towel ring with concealed screws?

Answer Depending on the type it will come with small mounting bracket that is screwed into the wall and looks ugly. The actual holder will normally have a hinge on the back the rests of the top ... Read More »

What are TEK 4 Screws?

TEK #4 screws are the "self-drilling" variety, which means that the bottom half of the screw looks like a drill bit, with threading restricted to the upper half under the head. These come in a vari... Read More »

What does 4-40 screws mean?

The term “4-40 screws” refers to the size of the screws. Screws come in standardized sizes and, in this case, 4-40 means the screw’s threads are 0.122 inches in diameter at the widest point a... Read More »

When were screws invented?

The standard flat-headed screw was invented around 700 BC, reports History For Kids. According to American Heritage, the Phillips-head screw was invented some time in the 1930s by Henry F. Phillips... Read More »