Screw on Insulator Fence Ring Post Wood Post Insulator for Farm Animal Fencing and  Electric Fence Accessories.

Screw on insulator specifications:-

Material: metal, plastic.

Total length:  3.7inch.

Metal part Total length: 2.34inch.

Self-tapping screws length:1.8inch.

Weight: 1.97pounds.

New Combination material: PP+PE Material(More Durable: Heat-resistant, Anti-freeze, Unbreakable! )better than others cheap PVC, excellent resistance to high and low temperature.

Hard embedded head, can be screwed in with one hand.

Self-tapping Screw: 13 laps

Can be used with matching sleeves to connect to electric drills.( More labor-saving and efficient.)