Square Nut 

Square Nuts

(Heavy-Duty Fastening with Four-Sided Grip and Increased Surface Contact)

Neo Fasteners supplies precision-engineered Square Nuts, ideal for applications that demand high torque resistance, large bearing surface, and secure, anti-slip fastening. These four-sided nuts are widely used in structural assemblies, machinery, furniture fittings, and rail systems due to their robust build and ease of installation with standard tools.

Square Nuts are especially effective in situations where a greater surface area is needed for better grip and load distribution.

🔹 Product Overview:

Square Nuts have a four-sided, flat design that offers better resistance to loosening, especially in wood, metal, or plastic applications. Their broad contact surface distributes the load more evenly than hex nuts, reducing the chances of pull-through and improving fastening reliability—particularly in softer materials.

These nuts are commonly paired with square-head bolts or carriage bolts, and they’re easy to tighten using pliers, wrenches, or even by hand when accessibility is limited.

🔹 Key Features:

• Four-Sided Design: Provides a larger surface area for better load distribution and a firm grip.
  
  

• Strong Torque Resistance: Resists turning and loosening under vibration or stress.
  
  

• Compatible with Standard Tools: Easy to install or remove using common wrenches or pliers.
  
  

• Multiple Material Options: Available in Mild Steel, Stainless Steel (SS 304/316), Brass, and Nylon.
  
  

• Finish Options: Zinc Plated, Hot Dip Galvanized, Black Oxide, Nickel-Plated for added corrosion resistance.
  
  

• Threading: Metric & Imperial, Coarse and Fine threads available.
  
  

🔹 Common Applications:

• Furniture & Woodworking: Used with carriage bolts for wooden frame construction and modular furniture.
  
  

• Railway & Infrastructure: Heavy-duty fastening for rail tracks, supports, and panels.
  
  

• Agricultural Equipment: Ensures secure mounting in vibration-prone applications.
  
  

• Machinery & Fabrication: Holds components in place with a strong grip.
  
  

• Electrical Paneling: Used for busbars and component mounts due to their strong surface contact.
  
  

🔹 Available Sizes & Specifications:

• Metric Sizes: M4 to M20
  
  

• Imperial Sizes: 1/4” to 3/4”
  
  

• Thread Types: Coarse (standard), Fine (on request)
  
  

• Material Grades:
  
  

  • MS – Mild Steel
    
    

  • SS 304 / 316 – Stainless Steel
    
    

  • Brass – For corrosion resistance and electrical conductivity
    
    

🔹 Advantages of Square Nuts:

• ✅ High Load-Bearing Capacity – Wide surface prevents fastener pull-through
  
  

• ✅ Simple & Secure Grip – Easy to hold during assembly
  
  

• ✅ Corrosion Resistant – Protective finishes extend lifespan in tough environments
  
  

• ✅ Compatible with Square & Carriage Bolts
  
  

• ✅ Ideal for Vibration-Prone Environments
  
  

🔹 Why Buy from Neo Fasteners?

• ✅ ISO 9001:2015 & ROHS Certified
  
  

• ✅ RoHS Compliant – Free of hazardous substances as per EU Directive 2011/65/EU and EU 2015/863
  
  

• ✅ Bulk Stock in Bangalore – Fast Shipping Across India
  
  

• ✅ Custom Size & Material Orders Available
  
  

• ✅ Trusted by Fabricators, Contractors & OEMs
  
  

• ✅ Technical Support & Sample Availability
  
  

Neo Fasteners – Your reliable source for Square Nuts in standard and custom configurations. Contact us now for bulk pricing, technical support, or to request samples for your next project.