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Compare thread designs of self tapping and self drilling screws. Learn when to use each type for better performance, speed, and material compatibility.

Metric vs imperial bolts: Learn why they're not interchangeable, risks of mixing them, and safe conversion tips. Trust QEWIT for quality fasteners.

Discover how threaded inserts boost strength & durability in metal projects. Learn about load distribution, wear resistance & custom solutions for industrial applications.

Learn how bolt length affects load distribution in joints. Discover optimal bolt selection for strength, fatigue resistance & safety in engineering projects.

Bolts and nuts are super important in building projects. They hold up big steel frames and concrete anchors to keep things safe and strong. But even the toughest fasteners can mess up if you don’t pick, put in, or care for them right. Knowing the usual problems with bolts and nuts—and how to fix them—is a big deal for builders, engineers, and people buying supplies. This guide will help you understand what goes wrong and how QEWIT can make it right!