
Wind Farm
We supply a wide range of bolts for wind power companies at home and abroad. There are flange bolts(DIN3914 and GR 10.9) used to connect towers, blade connecting bolts(T-bolts, cross bolts) and tightening bolts for power generators. These bolts are coated with delta-ton and delta-seal as final touch to prevent basic corrosion and satisfy the minimum requirement of 720HR in salt spray test.
For Wind Farm
Production Scope
- CNC Lathes
- Hot Forging : M10 - M100 (3/8 in. ~4 in.)
- Thread Rolling : M6 - M100 (1/4 in. ~ 4 in.)
- Band and Circular saw
Materials
- Structural Steel : JIS SS400, ASTM A36, A307, A325, A490
- Carbone Steel : S10C - S45C
- Alloy Steel : SCM 440, A193 Gr.B5, B7, B7M, B16, A320 Gr.L7, L7M, L43, A437 Gr. B4B, 20CrMoVTiB-10, etc.
- Heat Resistance Steel : ASTM A453 - 660, A564 - 630, C276, etc.
- Stainless Steel : A193 Gr.B8 CL.1&2, B8M CL.1&2, B8T, B8C, B6, SS317(L), SS321, etc.
- Duplex Stainless Steel : UNS No.: S31803, S32205, S32750, S32760, etc.
- Super Alloy Steel : MONEL K-400/K-500, INCONEL 625/718, TITANIUM Gr. 2, 5 ,7, NIMONIC, etc.
Applicable Standards
- ASME SECTION II PART A, B
- ASTM : A36, A182, A193, A194, A240, A276, A307, A320, A325, A449, A479, A490, A563, A574, F436, F844, B16, B462, B865, F1554, etc.
- ASME : B1.1, B1.13M, B18.2.1, B18.2.2, B18.3, B18.6.3, B18.2.3.5~7M, B18.2.4.1~6M, B18.3.1~6M, etc.
- BS : 3643-1, 3692, 4320, 14399
- JIS : B1051, B1052, B1173, B1175, B1178, B1180, B1181, B1189, etc.
- DIN : 912, 931, 933, 934, 936, 6914, 6915, 6916, 912, 125, 127, etc.
- ISO: 898-1, -2, 4014, 4032, 4762, etc.
- Customer Drawing and Specification
Surface Treatment
- Electric Galvanization: ASTM B633
- Hot-dip zinc coating: ASTM A153
- Mechanical Galvanization: ASTM B695
- PTFE (Teflon) Coating
- Acid Surface Treatments
- Phosphate Coating
- GEOMET Coating
- Delta-Tone & Seal Coating
- Xylan Coating
- Other Required Treatments
Tailored to your needs
From custom specifications to urgent project schedules, we adapt to your unique requirements — offering tailored solutions, flexible production, and responsive support to keep your operations running without compromise.
Durability And Strength
Designed for structural integrity and long-term performance, our fasteners ensure high strength and exceptional fatigue resistance — even under extreme mechanical stress and environmental exposure.
Sustainable by Design
Fasteners engineered with sustainability in mind — supporting wind energy projects through responsible material selection, durable performance, and ESG-driven manufacturing practices that reduce environmental impact over the full lifecycle.
A Purpose-Built Process
for Your Project Success
Trusted Expertise for Every Industry
Our Approach to Maintaining Excellence in Quality
Quality Inspection
Every incoming material is thoroughly inspected, each process is monitored through in-process quality checks, and all products undergo a final inspection with full documentation before shipment.
Training Program
We conduct rigorous training and internal review program covering international standards, safety and technical skills ensuring that our capabilities improve after every project.
Traceable Process
Our traceability system integrates designated operations, color-coded material handling, and detailed lot numbering to ensure complete product separation, immediate issue tracking and continuous quality monitoring.





