Screwdriver

A purchase order goes out for "16 mm round bar, one end threaded, 4.8 m long". The bars arrive, the clevises do not fit the thread, and once the turnbuckles ar...

Bracing rarely fails because the diagonal was too small. It fails at the connection: an oversize hole nobody carried into the bearing check, a hot-dip galvaniz...

A base-plate crew on a mid-rise project has four anchor bolts to set. One hole hits rebar, one sits close to a slab edge, and the third is in a wet area near a...

Ask three fastener suppliers for "A307 Grade C anchor bolts" and you will usually get three different answers. One quotes bent rods with A36 plate certificates...

A fabricator calls on a Friday: a 12-metre steel column lands on a base plate that is already drilled for 3/4-10 holes, the foundation has been poured and cure...