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Insulators for Ham Radio Antennas – Durable, Weather-Resistant, Reliable

DX Ham Radio Supply offers a full range of antenna insulators for dipoles, wire antennas, end-fed designs, and more. Whether you're building a field antenna or upgrading your permanent HF installation, our insulators provide long-term durability, high dielectric strength, and excellent mechanical support.

Types of Antenna Insulators Available

  • Dog Bone Insulators: Lightweight and UV-resistant, perfect for end support on dipole and EFHW antennas
  • Center Insulators: Designed for strong, clean center-feed configurations, often with SO-239 or eyelet terminations
  • Ceramic and ABS Plastic Options: Excellent insulative properties and resistance to moisture and aging

Built to Withstand Outdoor Conditions

  • ✅ UV and weather-resistant materials for long service life
  • ✅ Reinforced mounting points for strong tension and wind resistance
  • ✅ Easy integration with wire, rope, and coaxial feed systems

For Portable and Permanent Installations

Our insulators are trusted by amateur radio operators for building reliable antennas in every environment—from temporary portable deployments to rugged, long-term station installs.
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Aluminum Ferrules 1/8" Aluminum Ferrules 1/32" Budwig insulator Budwig insulator
Aluminum Ferrules 1/8"
Our price: $0.33

(1)
Aluminum Ferrules 3/32"
Our price: $0.33
Budwig Center Insulator
Our price: $2.49

(5)
One Pair (2) 1/8 Aluminum Ferrule secures straining wire. This will fit Davis RF Flex-Weave™ 12 Gauge 259 strand wire with PE Jacket One Pair (2) 1/32 Aluminum Ferrule secures straining wire. This will fit Davis RF Flex-Weave™ 14 Gauge 168 strand wire with PE Jacket Budwig long Wire end-insulator, fiberglass reinforced, UV resistant Light weight and durable; excellent for HF dipoles and wire antennas.

 		Designed for durability and light weight, this connector provides a coax SO-239 socket for accepting a PL-259 feed line plug
Center insulator, 4.5" long, porcelain Center Line Insulator Center Line Insulator Feed Thru Insulator 1-7/8" L
Center Insulator 4.5"
Our price: $17.84
Center insulator, 4.5" long, Porcelain Center insulator, for Balanced ladder line or coax Center insulator with hang-up hook, SO-239 coax connector, Stainless eye bolts, weatherized, rugged, 600 lbs pull strength 1 - 7/8" High-strength, low absorption dry process vitrified porcelain, corrugated shape, for longer leakage paths. Feed-thru panels, chassis, rack mountings, etc. White glaze finish to retard moisture absorption & reduce dirt/dust accumulation. Hardware: Brass Nickel plated rods, nuts, flat washers, and cork washers for cushioning.
Feed Thru Insulator 3.5" Feed Thru Insulator 6" Large Egg Insulator, 2.25" long, 1.5" wide, .40" holes, porcelain 10-06 Porcelain End Insulator
Feed Thru Insulator 3.5"
Our price: $19.32
Feed Thru Insulator 6"
Our price: $36.75
Large Porcelain Egg Insulator
Our price: $3.89

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Porcelain End Insulator
Our price: $2.59

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3.5" High-strength, low absorption dry process vitrified porcelain, corrugated shape, for longer leakage paths. Feed-thru panels, chassis, rack mountings, etc. White glaze finish to retard moisture absorbsion & reduce dirt/dust accumulation. Hardware: Brass Nickel plated rods, nuts, flat washers, and cork washers for cushioning. 6" High-strength, low absorption dry process vitrified porcelain, corrugated shape, for longer leakage paths. Feed-thru panels, chassis, rack untings, etc. White glaze finish to retard moisture absorption & reduce dirt/dust accumulation. Hardware: Brass Nickel plated rods, nuts, flat washers, and
cork washers for cushioning. 		Large Egg Insulator, 2.25" long, 1.5" wide, .40" holes, porcelain Porcelain End Insulator, 2.5" long, 1.0" wide, .20" holes
Small egg insulator, 1.5" x 1.0 " x .25" h White Dog Bone Insulator White Dog Bone Insulator Wire Beverage Insulator Pk. 25
Small Porcelain Egg Insulator
Our price: $2.99

(2)
White Dog Bone Insulator
Our price: $1.09

(11)
Small egg insulator, 1.5" long, 1.0 " wide, .25" holes, porcelain 3” Dog bone plastic (polyethylene) Extra High Strength, UV resistant. White, ¼” holes on each end. 4 pk, 3” Dog bone plastic (polyethylene) Extra High Strength, UV resistant. White, ¼” holes on each end. Wire/Beverage insulator, 1.5"L x 0.75" W, nail through center (nails not included) 25PK