Screw-On Insulator – Black | Heavy-Duty Electric Fence Ring Insulators for Wood Posts

The Screw-On Insulator – Black is a durable, high-performance electric fence insulator designed for securing electrified wire to wooden posts without energy loss. Built for versatility and longevity, it supports various wire types including high-tensile steel, aluminum, polywire, and poly rope. Its angled slot design ensures strong wire retention and optimal electrical isolation, making it ideal for agricultural fencing, livestock control, and perimeter security. Easy to install with no special tools required, this insulator is an essential fencing accessory for reliable, long-term use.

Product Features

Secure Wire Retention with Angled Slot

The angled slot design firmly holds electrified wire in place, reducing slippage and minimizing energy loss even under tension.

Versatile Wire Compatibility

Supports 9-gauge through 22-gauge steel and aluminum wire, as well as standard and heavy-duty polywire and poly rope up to 1/4 inch in diameter.

Durable Construction

Made from high-quality plastic and metal materials for enhanced durability, rust resistance, and weatherproof performance in outdoor installations.

Easy Installation on Wood Posts

Installs easily by screwing directly into wooden fence posts—no special tools or brackets required. Ideal for quick repairs or new installations.

Suitable for Low Impedance Fencing

Optimized for use with low impedance and standard load electric fence energizers, making it a practical choice for various farm and perimeter systems.

Product Specifications

• Product Type: Screw-on electric fence insulator
• Color: Black
• Quantity: 25 pieces per pack
• Dimensions: Approx. 9 x 3.5 cm (3.7 x 1.54 inches)
• Wire Compatibility:
  • 9 to 22 gauge high-tensile steel and aluminum wire
  • Polywire (regular and heavy-duty)
  • Poly rope up to 1/4 inch diameter
• Material: Metal and plastic
• Mounting Type: Screw-in (for wooden posts)
• Application: Livestock fencing, perimeter security, electric fence repairs
• Resistance: Anti-rust and weatherproof
• Use Case: Agricultural, rural, and residential fencing systems