S-93180A911 M6 x 20 mm DIN 603 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh or outdoor environments where rust prevention is critical.
• Secure anti-rotation locking provided by the integrated square neck, preventing the bolt from spinning during nut tightening for faster, more reliable assembly.
• High mechanical strength with a tensile strength of 70,000 psi and Rockwell B55 hardness, ensuring reliable performance under heavy loads and vibration.
• Wide, rounded head design offers an enlarged bearing surface for better load distribution and reduced risk of surface damage.
• Coarse 1mm thread pitch allows for quicker installation and is less prone to clogging with debris in industrial settings.
• Full threading (M6 x 20mm) provides maximum grip length and flexibility for a wide range of material thicknesses.
• Compliance with DIN 603 and environmental regulations ensures consistent quality and material safety for global engineering projects.

Professional Applications & Engineering Value

Engineered for demanding applications, these 316 stainless steel carriage bolts deliver exceptional durability where corrosion resistance is non-negotiable. The square neck design is a key engineering feature that bites into the mounting material, effectively solving the common problem of bolt rotation during assembly—this is vital in wood-to-metal fastening, construction, and machinery where vibration is a concern. The fully threaded M6 body with a 1mm coarse pitch ensures rapid installation and strong holding power in substrates like timber, plastic, or sheet metal. With a rounded head that minimizes surface marring, these bolts are a trusted solution for structural connections, transportation equipment, and marine fixtures, providing long-term reliability and reduced maintenance cycles.

Specification Summary & Compliance

This M6 carriage bolt features a 20mm length and is fully threaded with a Class 8g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. Manufacturing and material specifications conform to DIN 603, guaranteeing consistent performance. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.