Self-loosening screws represent one of the most persistent and costly challenges in industrial assembly and manufacturing. Through vibration, thermal expansion and contraction, material creep, and repeated mechanical stress, conventional fasteners gradually lose their clamping force, leading to joint failure, equipment malfunction, and costly downtime.

This presentation explores the fundamental physics behind fastener self-loosening and reveals how traditional solutions are falling short against the increasingly complex demands of modern manufacturing - including ease of automation, assembly reliability, technical cleanliness, and challenging assembly materials.

We present an innovative approach that combines POWERLOK® thread technology with complementary fastening elements to create a robust solution that simultaneously attacks both vibration-induced loosening and material relaxation, illustrated through real-world examples where failure is not an option.

Thanks to ESTIC’s patented motor control system, our pulse fastening technology has achieved an unprecedented reduction in reaction forces. Torque data is continuously processed every 1/2000 of a second to control the overall fastening strength and ensure safe and highly accurate tightening with minimal reaction force. What’s more, the tool’s ergonomic design and advance pulse fastening technology allow for single-handed operation in certain situations, dramatically reducing the strain placed on the operator.

Markus Fischer has many years of experience with screw‑technology audits. He shares some almost unbelievable stories, illustrating just how much untapped potential still lies in this seemingly simple and well‑functioning “screw.”

His message is clear: you should never take anything for granted — not even within your own company.

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