world 🌎🌍🌍 on Instagram: "The post showcases a DIY welding hack for repairing stripped threads by drilling and tapping an oversized hole in rusty metal, inserting a bolt, applying flux, welding the head flush, and grinding smooth to create a permanent stud, amassing 4 million views in under two days. Community feedback highlights technique flaws like hand-drilling wobble causing loose fits, with critics recommending Heli-Coil inserts for reusable threads, while supporters praise it for super-s