Our sales have 10 years experience in fastener area.
Our S321 stud and nut used in Chimney system of  Power plant!

SS321 Stainless steel hex bolt / 1.4541 bolt
Mchining quality
1. Standard: DIN931/933/603/444, ISO4014/4017/8677, ASME B18.2.1, A325, A325M
2. Material: SS321 / 1.4541
3. Size: M6-64mm
4. Delivery time: 30 days
Quality control
We have Spectrum Inspecting machine to confirm the raw material easy and avoid the mistaking.


The hardness is less HRB95 after anneanling


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