High Torque Resistance
The four-sided design provides a larger bearing surface compared with hex nuts, allowing better wrench engagement and higher tightening torque.
ASME/ANSI B18.2.2-2 Square Nut
- Standard: ASME/ANSI B18.2.2-2
- Material: Stainless Steel
- Thread Size: 1/4 – 1-1/2
- Surface Treatment: Plain, Zinc Plated
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
ASME/ANSI B18.2.2 Square Nuts are four-sided threaded fasteners designed for applications requiring strong wrench engagement and resistance against rotation. Compared with standard hex nuts, the square profile provides a larger contact surface area, making them suitable for machinery assembly, structural fastening, industrial equipment, and applications where secure tightening is required.
Manufactured according to ASME dimensional specifications, these square nuts provide consistent fit, reliable torque transmission, and compatibility with inch-series bolts and screws.
Draw & Specification
ASME/ANSI B18.2.2-2 Square Nut vs DIN 557
ASME B18.2.2-2
- Standard: Inch series (UNC/UNF)
- Market: USA and North America
- Feature: Designed for ANSI/ASME inch bolts, suitable for industrial equipment and machinery.
DIN 557
- Standard: Metric series (M thread)
- Market: Europe and global markets
- Feature: Compatible with DIN/ISO metric bolts, widely used in machinery and general fastening.
Core Difference:
ASME B18.2.2-2 uses inch dimensions and threads, while DIN 557 uses metric dimensions and threads. They are not interchangeable and should be selected according to the matching bolt standard.
Product Advantages
Excellent Anti-Loosening Performance
The square shape creates greater resistance against rotation, especially when installed against flat surfaces or in confined applications.
Reliable Inch Standard Compatibility
Produced according to ASME/ANSI B18.2.2 dimensional requirements, ensuring compatibility with standard inch-series bolts and threaded components.
Common Questions
What is ASME B18.2.2 Square Nut?
ASME B18.2.2 Square Nut is an inch-series square threaded nut manufactured according to ASME dimensional requirements for general fastening applications.
Are ASME B18.2.2 nuts compatible with metric bolts?
No. ASME B18.2.2 square nuts are designed for inch-series threads and should be matched with corresponding inch bolts.
What industries use square nuts?
Square nuts are commonly used in machinery, construction equipment, automotive systems, agricultural machinery, and industrial assemblies.
Can you provide customized ASME B18.2.2 nut?
Yes. Customized materials, finishes, packaging, and OEM specifications can be provided according to customer requirements.
