Stainless steel fasteners are often selected for corrosion resistance, but not all stainless grades perform the same. For custom U-bolts, shafts, pins, clamps and OEM metal parts, 304 and 316 stainless steel are two common choices. Buyers should select the grade based on environment, strength expectations, appearance and total project requirements.
- 304 stainless steel is widely used for general corrosion resistance in many indoor and moderate outdoor applications.
- 316 stainless steel is usually considered when stronger corrosion resistance is required, especially near chloride, marine-adjacent or more aggressive environments.
- For general machinery, brackets and fasteners, 304 may be sufficient when exposure is not severe.
- For coastal projects, wet environments or chemical exposure, 316 may provide better long-term reliability.
- Stainless steel does not mean maintenance-free in every environment, so service conditions should be discussed during quotation.
- Polishing and passivation may be requested when appearance or surface cleanliness is important.
- Stainless steel custom parts may require different forming, machining and threading considerations compared with carbon steel.
- Buyers should provide material grade, dimensions, finish request, quantity, application and exposure environment for accurate review.
If you need a practical quotation for a similar part, send your drawing, sample, material requirement, quantity and destination country. Juyi Metal can review the production route before quoting.