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Darter is one of the innovative leading manufacturers of forging hardware, trailer off road recovery kits, marine hardware, power line hardware, earthing and anchoring product, With 20 years of experience.
Premium Hot-Dip Galvanized Delta Yoke Plates engineered for high-voltage overhead
transmission lines. High tensile strength steel compliant with ASTM A153 & ANSIC135 for US utility grids.
Contact us for heavy-duty OEM hardware.
ASTM A153 Compliant Galvanization: Premium heavy-zinc coating delivers reliable sacrificial protection
against severe environmental corrosion, ensuring an extended structural lifecycle on utility poles and grid
towers.
Precision High-Tonnage Punching: Pin and bolt connection holes are stamped via automated high-capacity
punching systems to secure immaculate, friction-free alignment with socket tongues, clevises, and anchor
shackles.
High Ultimate Tensile Strength (RBS): Designed and rated to withstand heavy mechanical stress, ensuring
optimal load-balancing for bundled conductors under extreme wind and icing conditions.
Flawless Smooth Finish: Smoothly deburred radiused edges mitigate electrical corona discharge effects and
prevent any concentrated stress cracks during long-term high-tension operations.
| Engineering Property | Specification Standard & Compliance Data |
| Product | Delta Yoke Plate / Multi-String Clevis Plate / Triangle Plate |
| Primary Material | High-Grade Structural Carbon Steel (ASTM A36 / Grade 50 equivalent) |
| Anti-Corrosion Coating | Hot-Dip Galvanized (HDG) to ASTM A123 / ASTM A153 / ISO 1461 |
| Manufacturing Processes | Heavy CNC Oxy-Arc/Laser Profiling, High-Tonnage Mechanical Punching, Deburring |
| Design Configurations | Delta (Triangular) geometry with customizable multi-hole spacing configurations |
| Market Standards | Fully compliant with ANSI C135 Series & US Utility Infrastructure Standards |
Heavy-Duty Hot-Dip Galvanized Delta Yoke Plates for Overhead Transmission Lines
Our premium Delta Yoke Plates (also recognized as structural clevis plates) are custom-engineered to distribute
mechanical loads uniformly across twin or multiple bundle insulator strings on high-voltage electrical overhead
transmission and distribution systems. Specially manufactured for critical heavy-duty utility projects and exported
globally to the United States market, these components guarantee flawless mechanical and structural safety.
Each yoke plate is profile-cut using advanced precision machinery from high-grade structural carbon steel plates to
ensure a continuous, uniform grain structure with zero weld lines or micro-defects. Following processing, the
components undergo robust Hot-Dip Galvanization (HDG) in strict accordance with ASTM A153 / ASTM A123
standards, offering unmatched protection against aggressive oxidation, atmospheric salt-spray, industrial pollution,
and intense UV exposure.
CORE ENGINEERING PRODUCT FEATURES
Pole line hardware
Pole line hardware
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