M8 7/16'' Shoulder Metal Bolts – Ideal for Automotive Aerospace and Machinery Applications

The shoulder bolt, also referred to as a shoulder screw, is a widely used fastener that provides stable spacing, smooth sliding, or rotational movement in various applications.

• Machinery: Crucial in parts requiring precise alignment and movement, such as sliding components in transmission systems
• Automotive Industry: Common in suspension, engine, and braking systems, linking components like bushings and bearings
• Electronics: Maintains spacing between circuit boards and chips, preventing electrical interference
• Mold Manufacturing: Provides stable sliding in guiding mechanisms, maintaining precision
• Furniture Hardware: Used in hinges and sliding rails for controlled movement

Stainless steel is an alloy material with corrosion resistance, composed primarily of iron, chromium, and nickel. These elements provide excellent durability and aesthetic qualities.

• Clean with mild detergents and soft cloth
• Avoid acidic or alkaline cleaners
• Use specialized stainless steel cleaners for stubborn stains
• Rinse thoroughly and dry after cleaning

304 stainless steel is a general-purpose grade widely used for equipment requiring good corrosion resistance and formability. It contains at least 18% chromium and 8% nickel.

Q: What are the advantages and disadvantages of high-temperature blacking method and room temperature blacking method
A: high-temperature blacking technology is mature, stable process, the particular material has a special effect on the advantages of the development of a longer period of time, manufacturers are generally better to find the disadvantage is that the need for high-temperature heating; room-temperature blacking is a new blacking technology, the development of the development is also very rapid, the blackening of the convenient, fast, but the blackening of mild steel is not good. In general, high-temperature blackening technology is used, the conditions can be self-provided in the company's room temperature blackening solution.
Q:Blacking parts for a period of time began to appear rust spots
A: There are many reasons: 1, the use of harsh conditions, nature will also corrode; 2, the blackening process is not dealt with, closed did not do, or closed the effect is not good.
Q: blacking parts in the warehouse for a long time, the surface of the metal parts hanging white frost
A: The main reason is that the blacking parts are not cleaned. First, the surface of the residual liquid (which needs to be washed with hot water after blackening); second is the high concentration of sodium hydroxide (sodium hydroxide is not good to wash). The third is that the formula design is not scientific (as an example, the formula liquid is not easy to wash with water.)