A few times each year we receive calls from fastener suppliers who are in conflict with their customer over the quality of stainless steel bolts and nuts. The customer's complaint is that during installation …

We previously used standard 304 and 316 stainless steel screws for all our machines, but our customers experienced galling and gorging issues with these screws.

Jun 16, 2001 · Simply put, the nut rubs on the bolt's threads, and when stainless rubs, it galls- especially the gummy stuff they make those bolts out of. It's simply more pronounced with the nylocks, because …

Nov 26, 2019 · As most stainless steel is more sensitive to high temperatures, tightening bolts more slowly can reduce friction and heat that can cause galling. This may involve avoiding the use of …

Apr 4, 2025 · As the threads of a bolt and nut come into contact, the friction between them produces heat. If the temperature rises sufficiently, it can cause the metal surfaces to soften and weld together. …

Fortunately, stainless steel bolt and nut galling problems do not occur everyday, but when they do, it usually creates a customer crisis. Knowledge of why this occurs and how to remedy it, can save the …

Learn what causes thread galling in stainless steel fasteners and how to avoid it with proper techniques, materials, and lubricants—essential for long-lasting joints.

Sep 5, 2024 · If you've ever tightened a stainless steel bolt and felt it seize up unexpectedly, you've encountered thread galling. Learn what it is and how to prevent it.

Nov 13, 2025 · Affected Fasteners: All threaded fasteners are vulnerable to thread failure, especially those in high-stress environments – including many nuts and bolts. Causes: Improper installation is …

Apr 26, 2025 · For example, combining austenitic stainless steel bolts with nuts made from duplex stainless steel, brass, or bronze can effectively minimize galling. This approach leverages the …