Pig Bolts offer hot-dip galvanized, anti-rotation anchoring for wood pole distribution lines and cross arm attachments.
WANGYUAN Pig Bolt Series are designed for secure anchoring and anti-rotation fastening in wood pole distribution lines and cross arm attachments. Made of hot-dip galvanized forged carbon steel, the distinctive pig-tail curved hook embeds into the pole body to prevent bolt rotation during tightening. Available in multiple diameters and lengths. All products comply with relevant international standards.
| Product Code | Drawing | Main dimension (mm) | |||
|---|---|---|---|---|---|
| L | L1 | Ø | Ø1 | ||
| 30309A01 | 1 | 355 | 120 | 38 | 16 |
| 30309A02 | 1 | 260 | 157.5 | 40 | 14.2 |
| 30309A03 | 1 | 335 | 232.5 | 40 | 14.2 |
| 30309A04 | 2 | 300 | 200 | 30 | 14.2 |
| 30309A05 | 2 | 345 | 120 | 35 | 16 |
| 30309A06 | 2 | 329 | 100 | 38 | 19.5 |
| Product Code | Drawing | Main dimension(mm) | |||
|---|---|---|---|---|---|
| L | L1 | Ø | D | ||
| 30310A01 | 1 | 352 | 110 | 24 | 20 |
| 30310A02-1 | 1 | 422 | 115 | 24 | 20 |
| 30310A02-2 | 1 | 422 | 140 | 24 | 20 |
| 30310A02 | 1 | 412 | 140 | 24 | 20 |
| 30310A03 | 2 | 83 | 25 | 20 | 10 |
| 30310A04-1 | 2 | 340 | 120 | 36 | 16 |
| 30310A04-2 | 2 | 425 | 120 | 36 | 16 |
| 30310A04 | 2 | 340 | 120 | 38 | 16 |
| 30310A05 | 1 | 422 | 140 | 24 | 20 |
| 30310A06 | 2 | 498 | 120 | 38 | 16 |
The unique pig-tail curved hook mechanically embeds into the wood pole substrate, creating a form-locking anchor that prevents bolt rotation and eliminates pull-out under sustained tension loads. The square plate washer distributes force over a large bearing area.
Forged from premium carbon steel for maximum density and grain refinement, the pig bolt body achieves exceptional tensile and shear strength at the critical hook-to-shank transition zone.
Hot-dip galvanizing provides a thick, durable zinc coating that withstands the chemically aggressive environment of treated wood poles, maintaining integrity in direct ground contact and high-moisture decay zones.
Each pig bolt is supplied as a complete kit with square plate washer and double nuts for jam-locking security, enabling rapid and reliable field installation with basic hand tools.
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