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Brand Name : JIA SHAN
Model Number : DIN, ASEM, ISO
Certification : ISO
Place of Origin : China
MOQ : 100
Price : USD0.2/pcs-USD1/pcs
Payment Terms : T/T, Western Union
Supply Ability : Batch order abailable
Delivery Time : 1-5 weekds
Usage : Fastening
Style : shoulder bolt
Size : Various sizes available
Head Style : cap head/shoulder bolt
Strength : High
Finish : Plain
Manufacturer : JIA SHAN Hardward Company
Length : As customisation
Package : Small Packing+Carton Packing+Pallet
Standard : DIN
Package Quantity : 100 pieces
Shape : Self Tapping Screws
Measurement System : INCH, Metric
Port : Shenzhen
Quality : Inspection before shipment
Color : As customisation
Material : stainless steel
Stainless Steel Step Bolts Shoulder Metal Bolts 1/2 7/16 1 for Engineering Manufacturing
Product Description:
Stainless Steel Step Bolts with a shoulder design are specialized fasteners used extensively in engineering and manufacturing applications. These bolts feature a stepped, cylindrical shoulder beneath the bolt head, providing distinct advantages over standard bolts. The shoulder acts as a bearing surface, ensuring that the load is distributed more evenly across the joint, which helps in preventing damage to the materials being fastened. This feature is particularly useful in applications where precision and strength are paramount.
Available in various sizes, such as 1/2”, 7/16”, and 1”, these bolts are made from high-quality stainless steel, which provides excellent corrosion resistance. Stainless steel is highly durable and performs well in harsh environments, making it ideal for use in industries such as construction, automotive, aerospace, and heavy machinery manufacturing. The corrosion resistance ensures that these bolts maintain their strength and appearance even in exposure to moisture, chemicals, or extreme temperatures.
The stepped design of these bolts allows them to fit into a wider range of applications where the bolt needs to hold specific components at a particular spacing or provide additional support. In particular, the shoulder enables easier alignment of components, reducing the risk of misalignment during installation. These features make stainless steel step bolts especially valuable for applications involving metal-to-metal connections, heavy-duty equipment, or structural supports.
In engineering and manufacturing environments, the use of these specialized bolts contributes to improved assembly efficiency, safety, and long-term reliability. Whether used in machinery, infrastructure, or any project requiring strong and corrosion-resistant fastening solutions, stainless steel step bolts with shoulder provide a high-performance solution that ensures longevity and precision in critical applications.
Applications:
Stainless steel, as a material that occupies a key position in modern industry and daily life, has become an indispensable basic material in many fields due to its excellent corrosion resistance, high strength and good processing performance. Since its introduction at the beginning of the 20th century, the scope of application of stainless steel continues to expand, from the initial industrial field gradually penetrate into the building, transport, home appliances, medical and other aspects, has profoundly changed people's lives and production methods.
In the industrial field, stainless steel with its excellent corrosion resistance, widely used in chemical, petroleum, food processing and other industries in the manufacture of equipment. In chemical production, reactors, pipelines and other equipment are often exposed to a variety of corrosive media, the use of stainless steel can effectively resist corrosion, to ensure the long-term stable operation of the equipment, reduce maintenance costs and improve production efficiency. In the petroleum industry, oil well tubing, refining equipment, etc. need to work in harsh environments, stainless steel's high strength and corrosion resistance makes it the ideal choice of material to protect the smooth progress of oil extraction and processing.
Steel types:
No. | C% | Cr% | Ni % | Mo % |
304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
301 | 0.15 | 16.0-18.1 | 6-8 | / |
310 | 0.08 | 24-26 | 19-22 | / |
304L | 0.03 | 18-20 | 8-12 | / |
316L | 0.03 | 16-18 | 10-14 | 2-3 |
321 | 0.08 | 17-19 | 9-12 | / |
201, 304, 316 are austenitic stainless steel, according to the performance of the non-magnetic, some of the performance of the weak magnetic because of the smelting of the composition of the segregation or improper heat treatment leads to the austenite in a small amount of martensite or ferrite. Austenitic stainless steel corrosion resistance comes from the formation of chromium oxide protective layer on the metal surface. When the material temperature is heated to 450 degrees -900 degrees, the structure changes, will form chromium carbide along the edge of the crystal and can not form a protective layer of chromium oxide, thus reducing the corrosion resistance, this is also known as ‘intergranular corrosion’. As a result, there are 304L and 316L, the two due to the low carbon content also reduces the intergranular corrosion. In particular, the higher susceptibility to intergranular corrosion does not mean that non-low carbon content is more susceptible to corrosion, in a highly chlorinated environment, this susceptibility is also higher.
304 stainless steel
304 is a general-purpose stainless steel that is widely used to make equipment and machine parts that require good all-round performance (corrosion resistance and formability). In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 18% chromium, more than 8% nickel content. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard.
A2 stainless steel and A4 stainless steel, A2 is a class of 304 stainless steel, A4 is a class of 316 stainless steel, the main difference between the two is here, some of the fastener industry will be 302HQ and 304 referred to as: A2, 316 and 316L (C content of carbon C is less than 03% of the stainless steel, you can increase the ‘L’ logo) called A4.
What is the difference between a270 and a470 stainless steel bolts Nuts are usually used in conjunction with bolts. Hexagonal nuts are more widely used.C-grade hexagonal nuts are used in steel structures, machinery and equipment with rough surfaces and low requirements for precision.A-grade and B-grade hexagonal nuts are mainly used in machinery and equipment with smooth surfaces and high requirements for precision.
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