| Attribute |
Details |
| Type |
Square Nuts (Four-Sided Hexagonal Nuts, Traditional Structural Fasteners) |
| Material |
- Carbon Steel (ASTM A36, Q235, Grade 4.8/5.8)
- Stainless Steel (304/316, A2-70/A4-80)
- Alloy Steel (4140, Grade 10.9) for High-Tension Use |
| Finish |
- Hot-Dip Galvanized (ASTM A153, Salt Spray Resistance: 1000+ Hours)
- Zinc Plated (Yellow/White, RoHS Compliant)
- Black Oxide, Sherardizing (For Corrosion Resistance) |
| Design |
- Square Shape with Flat Sides (Facilitates Wrench/Grip Application)
- Full-Threaded Body
- Chamfered Edges for Easy Alignment
- Optional Serrated Underside (Anti-Slip in Vibrating Environments) |
| Thread Type |
- Metric (M6-M100, ISO 965-1)
- Imperial (1/2"-4", UNC/UNF)
- Coarse/Standard Thread Pitch (Default); Fine Thread Available on Request |
| Standards Compliance |
- ISO 4032 (Metric Square Nuts)
- ASME B18.2.2 (Inch Square Nuts)
- DIN 557 (German Standard for Square Nuts)
- EN 14399 (Structural Bolting in Construction) |
| Tensile Strength |
- Carbon Steel: 400–600 MPa (Grade 4.8/5.8)
- Alloy Steel: 1000+ MPa (Grade 10.9)
- Stainless Steel: 500–700 MPa (304/316) |
| Corrosion Resistance |
- Hot-Dip Galvanized: Suitable for Outdoor/Marine Structures
- Stainless Steel: Ideal for Chemical/Coastal Environments |
| Applications |
- Structural Steel Fabrication (Bridges, Buildings, Towers)
- Heavy Machinery, Agricultural Equipment, Industrial Framing
- Traditional Woodworking, Vintage Mechanical Repairs
- Pipe Fittings and Railway Components |
| Packaging |
- Bulk: 25 kg/50 kg Polypropylene Bags in Plywood Cases
- Retail: Blister Packs (10/50 Pieces per Pack)
- Custom: Labeled Packaging for OEM Orders |
| Certifications |
- CE, ISO 9001:2015
- Material Traceability Certificates (MTC)
- EN 1090 Compliance for Structural Engineering Projects |
| Minimum Order Quantity (MOQ) |
500 Pieces (Standard Sizes); 1000 Pieces (Stainless Steel/Alloy Steel) |
| Delivery Time |
15–25 Days (Standard); 30–45 Days (Custom Sizes/Finishes) |
| Customization |
- Non-Standard Sizes (Up to M120 or 5")
- Thread-Locking Coatings (e.g., Dacromet)
- Engraved Part Numbers for Inventory Management |
- Structural Robustness: Square shape provides superior torque resistance compared to hex nuts, making them ideal for load-bearing applications in construction and heavy machinery.
- Corrosion Protection: Hot-dip galvanized and stainless steel options meet the demands of outdoor, marine, and industrial environments with high humidity or chemical exposure.
- Global Standard Compatibility: Compliant with ISO, ASME, and DIN standards, ensuring seamless integration into international projects (e.g., EN 1090-certified for European construction).
- Versatile Material Options: Carbon steel for cost-efficiency, alloy steel for high-strength needs, and stainless steel for corrosion-prone sectors like oil & gas or food processing.
- Bulk Order Benefits: Competitive pricing for large-scale infrastructure projects, with flexible logistics (e.g., FCL/LCL shipping) and fast turnaround for urgent orders.
Need to highlight compatibility with specific regional standards (e.g., ASTM A194 for nuts in pressure vessels) or add anti-seize coating options? Let me know!
JH Bolt Co., Ltd is a professional manufacturer of different types of bolts with more than 15 years rich manufacturer experience. The factory area is more than 1500 squares with more than hundreds different types ofnevproduction machines. There are more than 50 people who work here for at least 5 years.With quality &customer frst, staffs second, then company, Our products are widely recog-nized and trusted by users all over the world. Proft for the development of communication, We are here for you 12 hours a day, 7 days a week!
