Sign In | Join Free | My wneducation.com |
|
Categories | Self Tapping Screw |
---|---|
Finish: | Black, ZINC, Black Oxide, ZINC PLATED |
Material: | Stainless steel, Steel |
Measurement system: | Metric |
Head Style: | Socket |
Place of Origin: | Guangdong, China |
Brand Name: | JUHAO |
Model Number: | Socket Head Self Tapping Screw |
Standard: | GB,DIN,ISO |
Surface treatment: | Plain.Black.Blue,yellow Zinc Plate. |
Certificate: | IATF16949:2016/ISO9001:2015 |
Delivery time: | 7-25 Days |
Advantage: | One-stop Customized Service |
Quality control: | 100% Inspection Berore Shipment |
Materia: | Carbon Steel Alloy Steel Stainless |
Packaging Details: | Inner PE Bag+Carton+Pallet |
Supply Ability: | 500000 Piece/Pieces per Month |
MOQ: | 2000 pieces |
Price: | $0.12/pieces 2000-19999 pieces |
Company Info. |
Shenzhen Juhao Hardware Technology Co., Ltd. |
Verified Supplier |
View Contact Details |
Product List |
Certificate | IATF16949:2016/ISO9001:2015 |
Color | Customized Colors |
Delivery time | 7-25 Days |
Package | PE Bag+Carton+Pallet |
QUALITY control | 100% Inspection Berore Shipment |
Advantage | OEM ODM Customized Service Provided |
Material | Carbon steel/Stainless steel |
Screws type | Truss / Socket head Self tapping Screws |
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 |
![]() |