Our company mainly produces and sells fasteners of GB,DIN,ISO ,JIS and ANSI etc. series,and provides all kinds of stainless steel materials wih lower price.We have more than 15 years experience in fastener manufacture.
item | value |
Finish | Black, ZINC, Black Oxide, ZINC PLATED, Zinc-aluminum Coated |
Material | Stainless steel, Steel, Aluminium, Bronze |
Measurement system | Metric |
Head Style | Flat |
Place of Origin | China |
Guangdong | |
Brand Name | JUHAO |
Model Number | Thumb Screw |
Standard | DIN |
Certificate | SGS ROHS ISOISO9001:2015 |
Delivery time | 3-20days |
Package | Buyer's Requirement |
Advantage | OEM One-stop Customized Service |
Quality | Salt Spray Test |
Quality control | Inspection+QC Report |
Question 1 | 1.Why is stainless steel magnetic? |
304 stainless steel belongs to austenitic stainless steel, austenite in the cold working process in part or a small amount of transformation into martensite, martensite is magnetic, so 304 stainless steel is non-magnetic or slightly magnetic. | |
Question 2 | 2. How to identify authentic 304 stainless steel products? |
①Support 304 stainless steel special test potion detection, if not discoloured for the authentic 304 stainless steel | |
② support chemical composition analysis, spectral analysis | |
③ support salt spray test, simulate the actual use of the environment | |
Question 3 | 3. What are the most commonly used stainless steel? |
① 201 stainless steel, suitable for use in dry environments, easy to rust in water | |
② 304 stainless steel, outdoor or wet environment, corrosion resistance and acid resistance | |
③ 316 stainless steel, plus molybdenum, more corrosion resistance and pore erosion resistance, especially for seawater and chemical media |