中文
Português
Русский
Español
English
ASTM A320 L7/L7M Stud Bolts and ASTM A194 7/7M Nuts Exported to Kazakhstan
Haihao Group recently completed the shipment of a batch of ASTM A320 L7/L7M stud bolts with ASTM A194 7/7M nuts to a customer in Kazakhstan. The order also included soft iron washers for industrial flange connection applications.
These fastening products are widely used in oil & gas, petrochemical, power generation, and pipeline systems where high mechanical strength, low-temperature performance, and corrosion resistance are essential.
The products were manufactured according to strict international material requirements and supplied with hot-dip galvanized surface treatment to improve corrosion protection during transportation and field installation.
Product Details
| Product | Size | Material | Surface Treatment |
| Stud Bolt with 2 Nuts | 3/4″ × 110mm | ASTM A320 Grade L7M / ASTM A194 Grade 7M | Hot-Dip Galvanized |
| Stud Bolt with 2 Nuts | 5/8″ × 75mm | ASTM A320 Grade L7 / ASTM A194 Grade 7 | Hot-Dip Galvanized |
| Flat Washer | 42mm × 36mm × 1.5mm | Soft Iron | Natural Finish |
ASTM A320 L7/L7M Stud Bolts for Low-Temperature Applications
The supplied ASTM A320 L7/L7M stud bolts with ASTM A194 7/7M nuts are designed for demanding industrial environments requiring high tensile strength and reliable low-temperature performance.
Key Advantages
Excellent Low-Temperature Toughness
ASTM A320 Grade L7M fasteners are widely used in low-temperature pipeline systems and pressure equipment.
Reliable Mechanical Strength
The stud bolts provide stable clamping force for flange connections under high-pressure conditions.
Enhanced Corrosion Resistance
Hot-dip galvanized coating helps improve corrosion protection during outdoor storage and operation.
Stable Sealing Performance
Combined with soft iron washers, the fastening system supports secure flange sealing performance.
Hot dip galvanized ASTM A320 L7M stud bolts with ASTM A194 nuts and soft iron washer
Strict Quality Inspection Before Shipment
Before delivery to Kazakhstan, Haihao Group performed complete inspections on all fastening products, including:
- Raw material verification
- Dimension inspection
- Thread inspection
- Surface treatment examination
- Mechanical property testing
- Packaging inspection
All products were packed carefully to ensure safe export transportation.
One-Stop Pipeline Solutions from Haihao Group
As a GLOBAL EXPERT IN PIPELINE SYSTEM SOLUTIONS, Haihao Group provides:
- Steel pipes
- Pipe fittings
- Forged flanges
- Industrial fasteners
- Overlay cladding
- Pre-fabrication
- Coating & lining services
With advanced manufacturing capabilities and decades of export experience, Haihao Group supplies reliable industrial pipeline products for global energy and infrastructure projects.
Contact Haihao Group
If you are looking for a reliable supplier of ASTM A320 L7/L7M stud bolts with ASTM A194 7/7M nuts, Haihao Group can provide customized fastening solutions for your industrial pipeline projects.
Contact our technical sales team today for professional support and competitive quotations.