In this video, we cover how to properly use Tapcons (concrete screws) for attaching wood to concrete and securing materials ...
Self-tapping screws are designed to create their own threads as they are driven into masonry. Unlike other fasteners, contractors do need to drill a hole or tap threads in a separate step. This ...
HOUSTON, May 6 (Reuters) - A top executive of Schlumberger NV (SLB), the world's largest energy services firm, on Monday predicted autonomous drilling of oil and gas wells will beat autonomous driving ...