Carbon Steel Shoulder Bolts Fastenal M4 M6 M8 M10 M12 M16 For Structural Projects

Shoulder bolts, or shoulder screws, are precision fasteners designed to provide stable spacing, smooth sliding, and rotational motion in demanding industrial applications.

• Machinery: Ensures precise alignment in transmission systems while preventing thread interference
• Automotive: Essential for suspension, engine, and braking systems to connect bushings and bearings
• Electronics: Maintains critical spacing between circuit boards and chips to prevent electrical interference
• Mold Manufacturing: Facilitates smooth sliding of mold components, improving precision and longevity
• Furniture Hardware: Provides controlled movement in hinges and sliding rails for lasting functionality
• Aerospace: Delivers vital precision and stability for critical component positioning
• Industrial Automation: Ensures smooth, precise movement in robotic arms and conveyor systems
• Medical Equipment: Enables controlled movement in adjustable medical devices
• Tooling & Fixtures: Maintains consistent alignment for high production accuracy
• Construction & Heavy Equipment: Provides stable movement in structural components under heavy loads

304 stainless steel is a general-purpose grade containing at least 18% chromium and 8% nickel, offering excellent corrosion resistance and formability. The "L" variants (304L, 316L) feature lower carbon content to reduce intergranular corrosion susceptibility.

• A2: Classification for 304 stainless steel in fastener industry
• A4: Classification for 316 stainless steel in fastener industry