Din 931 full half threaded long hex bolt din931 933 brass stainless carbon steel din933 M5 M6 M8 to M64 hexagon hex head bolts
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- Supplier: Shenzhen Juhao Hardware Technology Co. Ltd.
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Product Overview
Description
Company Profile
ABOUT US
Reasons for choosing us
1.Our company mainly produces and sells GB, DIN, ISO, ANSI series fasteners, and provides various carbon steel, stainless steel, and brass materials and products at lower prices. We have over 15 years of experience in fastener manufacturing.
2.Our company has SGS, ISO9001 and ATF16949 certificates, and our products comply with ROSH standards. All products are inspected by inspectors during the production process and packaging, and the quality of all products is guaranteed.
3.After receiving the customer's order, if it is a standard product, we will ship it within 3 to 7 days. If the customer orders a customized product, we can ship it within 7-15 days after receiving the customer's drawings or samples.
4.We provide customized services based on drawings and samples, and also accept customization according to customer needs.
Different Finish
Surface treatment is the process of forming a covering layer on the surface of a workpiece through certain methods, with the aim of endowing the product with a beautiful and corrosion-resistant surface. The surface treatment methods include:
1. Electroplating: Generally, electroplating includes zinc plating, copper plating, nickel plating, chromium plating, copper nickel alloys, etc. Sometimes, blackening (blueing), phosphating, etc. are also included.
2. Hot dip galvanizing: completed by immersing carbon steel components in a molten zinc plating bath with a temperature of approximately 510 ℃. The result is to gradually transform the iron zinc alloy on the surface into passive zinc on the outer surface of the product.
3. Mechanical plating: Impact the surface of the product by coating metal particles and cold weld the coating onto the surface of the product.
1. Electroplating: Generally, electroplating includes zinc plating, copper plating, nickel plating, chromium plating, copper nickel alloys, etc. Sometimes, blackening (blueing), phosphating, etc. are also included.
2. Hot dip galvanizing: completed by immersing carbon steel components in a molten zinc plating bath with a temperature of approximately 510 ℃. The result is to gradually transform the iron zinc alloy on the surface into passive zinc on the outer surface of the product.
3. Mechanical plating: Impact the surface of the product by coating metal particles and cold weld the coating onto the surface of the product.
A325 Hex Bolt
As a comparison, the ASTM A325 bolt is roughly equivalent to the SAE grade 5. A grade 8 bolt would be one that meets ASTM A490 standards. The A325 bolt strength, or SAE grade 5 bolt strength, is usually used for structural bolting projects
Grade B7 Hex Bolt
B7. This chromium molybdenum steel has similar strength to SAE grade 5 fasteners, however, it is specifically used in high temperature and pressure applications. This grade is for fittings, flanges, valves, and pressure vessels. It is also used as threaded rod in concrete and epoxy.
Grade 5 Hex Bolt
Class 8.8 Hex Bolt
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COMPANY PROFILE
Shenzhen Juhao Hardware Technology Co.Ltd, established in 2018 and located in Shenzhen, China. SHENZHEN Juhao Hardware Technology Co.Ltd is a professional manufacturer of standard and non-standard fasteners more than a decade. Our company mainly produces and sells fasteners of GB,DIN,ISO and JIS series,and provides all kinds of stainless steel materials wih lower price.We have more than 15 years experience in fastener manufacture.
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 |
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