All Products

Welcome to Sky High Supply, your trusted source for commercial-grade telecom and electrical supplies. Whether you're managing a large-scale infrastructure build or tackling an urgent job site repair, we’ve got the inventory and speed Northeast contractors rely on.

Based in New Jersey and serving New York, Pennsylvania, Connecticut, and beyond, we carry top-tier products from the brands you trust—JMA, Southwire, ConcealFab, and more.

Browse our best-selling categories:

  •  Fiber Jumpers & PIM Solutions

  • THHN & Copper Wire

  • Conduit, Unistrut, and Mounting Hardware

  • Lugs, Barrel Cushions, Tapes, and Accessories

  • Safety Labels & Reflective Markers

Need help finding a product? Our knowledgeable team is here to support electrical contractors, telecom techs, and infrastructure pros every step of the way.

388 products

  • 1/2" Galvanized Flat Washer (Pack of 100)
    Sky High Supply Company

    1/2" Galvanized Flat Washer (Pack of 100)

    $15.00
    $15.00

    Bolt Size 1/2" Finish Galvanized Steel Quantity: 100

  • 1/2" Galvanized Lock Washer (Pack of 100)
    Sky High Supply Company

    1/2" Galvanized Lock Washer (Pack of 100)

    $15.00
    $15.00

    Finish Galvanized Steel Quantity: 100

  • #2 Solid Tinned Copper (Per Foot) by Sky High Supply Company
    #2 Solid Tinned Copper (Per Foot) by Sky High Supply Company
    Sold out
    Sky High Supply Company

    #2 Solid Tinned Copper Wire (Sold Per Foot) — Compatible with Burndy C-Tap YC2C2

    $5.00
    $5.00

    Heavy-duty #2 solid tinned copper sold by the foot for clean, corrosion-resistant bonds and jumpers. Commonly used with Burndy C-Tap YC2C2 for reliable compression connections in...
  • #2 Solid Tinned Copper (250 Foot Spool)#2 Solid Tinned Copper (250 Foot Spool)
    #2 Solid Tinned Copper (250 Foot Spool)#2 Solid Tinned Copper (250 Foot Spool)
    Sky High Supply Company

    #2 Solid Tinned Copper (250 Foot Spool)

    $1,250.00
    $1,250.00

    #2 Solid Tinned Copper Wire – 250 ft Spool or Solid Tinned Copper Wire By The Foot   Key Features: Conductor Size: #2 AWG Conductor Material:...
  • #10 Red Stranded THHN Wire (Per Foot) by Sky High Supply Company
    #10 Red Stranded THHN Wire (Per Foot) by Sky High Supply Company
    Sky High Supply Company

    #12 Red Stranded THHN Wire (Per Foot)

    $0.50
    $0.50

    #12 AWG Red Stranded THHN Wire — sold by the foot. A staple for electricians and contractors wiring branch circuits, panel feeds, and conduit installations in...
  • #10 Black Stranded THHN Wire (Per Foot) by Sky High Supply Company
    #10 Black Stranded THHN Wire (Per Foot) by Sky High Supply Company
    Sky High Supply Company

    #12 Black Stranded THHN Wire (Per Foot)

    $0.50
    $0.50

    #12 Black Stranded THHN Wire Sold By Foot Maximum Length 500' Spool Jacket Color: Black Stranding: 19 Gauge: 12 CSA/UL Listed

  • #12 Green Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #12 Green Stranded THHN Wire (Per Foot)

    $0.50
    $0.50

    #12 Green Stranded THHN Wire Sold By Foot Maximum Length 500' Spool Jacket Color: Green Stranding: 19 Gauge: 12 CSA/UL Listed

  • #10 Red Stranded THHN Wire (Per Foot) by Sky High Supply Company
    #10 Red Stranded THHN Wire (Per Foot) by Sky High Supply Company
    Sky High Supply Company

    #10 Red Stranded THHN Wire (Per Foot)

    $0.75
    $0.75

    #10 Red Stranded THHN Wire Sold By Foot Maximum Length 500' Spool Jacket Color: Red Stranding: 19 Gauge: 10 CSA/UL Listed

  • #10 Black Stranded THHN Wire (Per Foot) by Sky High Supply Company
    #10 Black Stranded THHN Wire (Per Foot) by Sky High Supply Company
    Sky High Supply Company

    #10 Black Stranded THHN Wire (Per Foot)

    $0.75
    $0.75

    #10 Black Stranded THHN Wire is designed for reliable electrical performance in both commercial and industrial applications. Its 19-strand copper conductor provides flexibility for easy routing...
  • #8 Green Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #8 Green Stranded THHN Wire (Per Foot)

    $1.85
    $1.85

    #8 Green Stranded THHN Wire Sold Per Foot Maximum Spool 500' Jacket Color: Green Jacket Material: Nylon Stranding: 19 Gauge: 8AWG CSA/UL Listed

  • #6 Red Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #6 Red Stranded THHN Wire (Per Foot)

    $2.00
    $2.00

    #6 Red Stranded THHN Wire Sold Per Foot Jacket Color: Red Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #6 Black Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #6 Black Stranded THHN Wire (Per Foot)

    $2.00
    $2.00

    #6 Black Stranded THHN Wire Sold Per Foot Jacket Color: Black Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #6 Green Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #6 Green Stranded THHN Wire (Per Foot)

    $2.00
    $2.00

    #6 Green Stranded THHN Wire Sold Per Foot Jacket Color: Green Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #6 Red Stranded THHN Wire (500' Spool)
    Sold out
    Sky High Supply Company

    #6 Red Stranded THHN Wire (500' Spool)

    $1,000.00
    $1,000.00

    #6 Red Stranded THHN Wire Sold in 500' Spools Jacket Color: Red Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #6 Black Stranded THHN Wire (500' Spool)
    Sold out
    Sky High Supply Company

    #6 Black Stranded THHN Wire (500' Spool)

    $1,000.00
    $1,000.00

    #6 Black Stranded THHN Wire Sold in 500' Spools Jacket Color: Black Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #6 Green Stranded THHN Wire - Telecom Grounding for AT&T/Verizon/T-Mobile (500' Spool)
    Sky High Supply Company

    #6 Green Stranded THHN Wire - Telecom Grounding for AT&T/Verizon/T-Mobile (500' Spool)

    $1,000.00
    $1,000.00

    #6 Green Stranded THHN Wire Sold in 500' Spools Jacket Color: Green Jacket Material: Nylon Stranding: 19 Gauge: 6AWG Manufacture: Southwire CSA/UL Listed

  • #2 Green Stranded THHN Wire (Per Foot)
    Sky High Supply Company

    #2 Green Stranded THHN Wire (Per Foot)

    $4.25
    $4.25

    Southwire #2 AWG Green Stranded THHN Wire — sold by the foot. A go-to choice for contractors and system integrators running branch circuits, conduit installations, and...
  • 1/0 Black THHN Wire (Sold Per Foot)
    Sold out
    Sky High Supply Company

    1/0 Black THHN Wire (Sold Per Foot)

    $4.75
    $4.75

    1/0 Black Stranded THHN Wire Sold By Foot Jacket Color: Black Stranding: 19 Gauge: 1/0 Manufacture: Southwire CSA/UL Listed

  • Buy #6 Gray TelcoFlex L4 by the foot #6 Gray TelcoFlex L4 (Per Foot)
    Buy #6 Gray TelcoFlex L4 by the foot #6 Gray TelcoFlex L4 (Per Foot)
    Sky High Supply Company

    #6 Gray TelcoFlex L4 (Per Foot)

    $2.65
    $2.65

    Southwire TelcoFlex® L4 #6 Gray Telecom Power Cable – Sold Per Foot(For TelcoFlex L4 by the spool, click here.) This high-performance TelcoFlex® L4 cable from Southwire...
  • TelcoFlex® L4: #2 Gray, Stranded Copper, 200' Spool (UL-Listed)TelcoFlex® L4: #2 Gray, Stranded Copper, 200' Spool (UL-Listed)
    TelcoFlex® L4: #2 Gray, Stranded Copper, 200' Spool (UL-Listed)TelcoFlex® L4: #2 Gray, Stranded Copper, 200' Spool (UL-Listed)
    Sold out
    Sky High Supply Company

    TelcoFlex® L4: #2 Gray, Stranded Copper, 200' Spool (UL-Listed)

    $1,065.00
    $1,065.00

    TelcoFlex® L4 #2 Gray 200' Spool by Southwire delivers the flexibility, durability, and code compliance that telecom, data-center, and power-distribution projects demand. Engineered with a stranded...
  • 4 Ft Clear Heat Shrink 1/4" 2:1 Ratio
    Sky High Supply Company

    4 Ft Clear Heat Shrink 1/4" 2:1 Ratio

    $4.00
    $4.00

    Package Quantity 1 - 4ft Piece of Heat Shrink  General Specifications 1/4" Heat Shrink 2:1 Ratio

  • 4 Ft Clear Heat Shrink 3/8" 2:1 Ratio
    Sky High Supply Company

    4 Ft Clear Heat Shrink 3/8" 2:1 Ratio

    $4.00
    $4.00

    The 4 Ft Clear Heat Shrink 3/8" 2:1 Ratio is a professional-grade heat-shrinkable tubing designed to provide insulation, environmental protection, and strain relief for cable connections...
  • 4 Ft Clear Heat Shrink 1/2" 2:1 Ratio
    Sky High Supply Company

    4 Ft Clear Heat Shrink 1/2" 2:1 Ratio

    $4.00
    $4.00

    Package Quantity 1 - 4ft Piece of Heat Shrink  General Specifications 1/2" Heat Shrink 2:1 Ratio

  • 4 Ft Black Heat Shrink – 3/8" (3:1 Ratio, Adhesive-Lined)
    Sky High Supply Company

    4 Ft Black Heat Shrink – 3/8" (3:1 Ratio, Adhesive-Lined)

    $4.00
    $4.00

    Length: 4 Feet Diameter: 3/8" Shrink Ratio: 3:1 Adhesive-Lined: Yes (Dual-Wall) This 4 Ft Black Heat Shrink (3/8") features a 3:1 shrink ratio with an internal...
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