This guide is organised as Application location → Corresponding product → Function, mapping Zhenhua washers and stamped parts to specific locations across eight industries. All products listed are current Zhenhua production items and can be quoted and selected directly.
Temperature and salt spray figures quoted are general industry reference values. We recommend cross-checking against Zhenhua's own test reports before publication.
Oil and gas fasteners face the most extreme combination of conditions in industry: high temperature, high pressure, strong vibration and corrosive media - and equipment failure usually carries safety and environmental consequences. In this sector, washer selection is not a cost question but a safety one.
View Details To SolutionsA passenger car contains roughly three to four thousand fasteners. The difficulty in automotive is not any single part but the combination of multiple vibration sources, large temperature gradients, fast assembly cycle times and high volumes. Zhenhua has supplied automotive and machinery customers since 1993 and holds TS16949 certification.
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Aerospace has the highest technical threshold in fastening, and the governing logic differs from commercial industry - it is reliability first, not a balance of cost against performance. One point must be stated clearly up front: Zhenhua's standard scope covers non-airworthiness-certified precision stamped parts and general washers. Airworthiness-certified parts (NAS, MS standard parts) require dedicated airworthiness qualification and certification processes and fall outside that scope. Below are the applicable locations.
View Details To SolutionsThe particularity of timber fastening comes from the material itself: it swells and shrinks with moisture, creeps under sustained load, and has low surface hardness so it dents easily. This means loosening in timber originates from material deformation rather than vibration - so selection logic centres on elastic compensation rather than rigid locking. Here is the part-by-part product mapping.
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