Precision Stainless Steel Metal Shoulder Bolts for Engineering Available in 1/2 7/16 and 1 Sizes

Precision stainless steel metal shoulder bolts are engineered for applications requiring exact measurements and superior strength. The shoulder design ensures precise component alignment, while the high-quality stainless steel construction provides excellent resistance to rust and corrosion in demanding environments.

Available in sizes including 1/2", 7/16", and 1", these bolts offer flexibility for various engineering projects in construction, automotive, and heavy machinery applications where both mechanical strength and long-term reliability are essential.

1. Ordinary bolts are classified into three grades: A, B, and C. The first two are precision bolts and are less commonly used. When referring to ordinary bolts in general, this typically denotes Grade C ordinary bolts.
2. Grade C ordinary bolts are frequently employed in temporary connections and those requiring disassembly. Commonly used ordinary bolts in building structures include M16, M20, and M24. Certain coarse-threaded bolts in the mechanical industry may have larger diameters and serve specialised purposes.
High-Strength Bolts
3. High-strength bolts differ in material composition from ordinary bolts. They are typically employed for permanent connections, with common sizes ranging from M16 to M30. Extra-large high-strength bolts exhibit unstable performance and should be used with caution.
4. Bolted connections in primary structural members of buildings generally utilise high-strength bolts.
5. High-strength bolts supplied ex-works are not categorised as either bearing-type or friction-type.
6. The distinction between friction-type high-strength hex bolts and bearing-type high-strength bolts lies in their design calculation methods:
(1) Friction-type high-strength bolts define the ultimate limit state as the onset of slip between plate layers.
(2) Bearing-type high-strength bolts define the normal serviceability limit state as the onset of slip between plate layers, while the ultimate limit state is defined as connection failure.
7. Friction-type high-strength bolts do not fully utilise the bolt's potential capacity. In practical applications, for critically important structures or those subjected to dynamic loads—particularly where loads induce reverse stresses—friction-type high-strength bolts should be employed. In such instances, the untapped bolt capacity can serve as a safety reserve. For all other applications, bearing-type high-strength bolt connections should be adopted to reduce costs.

• Machinery: Ensures precise alignment and smooth movement in transmission systems
• Automotive: Used in suspension systems, engines, and brakes for bearing connections
• Electronics: Maintains proper spacing between circuit boards to prevent interference
• Mold Manufacturing: Guides parts within molds for precision operation
• Furniture Hardware: Enhances durability in hinges and sliding rails
• Aerospace: Provides high precision positioning in critical components
• Industrial Automation: Supports accurate movement in robotic systems
• Medical Equipment: Enables smooth adjustment in medical devices
• Tooling & Fixtures: Maintains alignment in manufacturing jigs
• Construction: Provides reliable performance under heavy structural loads

• Clean regularly with mild detergents and soft cloths
• Avoid acidic or alkaline cleaners that may damage the surface
• Use specialized stainless steel cleaners for stubborn stains
• Rinse thoroughly and dry after cleaning