allG

800.950.7960 | sales@allG.com

© 2025 allG Fabrication

Website by Bella Group

Formerly ALT

Forgot Password?   |   New User Signup

Product Guide  >  Lightning Protection  >  Conventional Lightning Protect...  >  Air Terminal Bases - Class II ...  >  Standing Seam Mount Bases

allG offers Standing Seam Mount Bases that can be rotated to route conductor with the seam or against the seam. The copper bases use a stainless steel mount bracket which allows for compatibility with all roof types. The aluminum bases use an aluminum mount bracket. Also available in tinned upon request.

See Also

Image Item Description Weight Price Unit Qty
Item #851-38
851-38
Item #851-38 		Robbins Standing Seam Base; 3/8"; cast bronze with swivel; fits 13/16" max seam width; fits class I and class II conductors thru .563" diameter; UL Listed 1.14 lbs. $40.00* EA
Item #851-12
851-12
Item #851-12 		Robbins Standing Seam Base; 1/2"; cast bronze with swivel; fits 13/16" max seam width; fits class I and class II conductors thru .563" diameter; UL Listed 1.13 lbs. $40.00* EA
Item #851-58
851-58
Item #851-58 		Robbins Standing Seam Base; 5/8"; cast bronze with swivel; fits 13/16" max seam width; fits class I and class II conductors thru .563" diameter; UL Listed 1.12 lbs. $40.00* EA
Item #851-2S-38
851-2S-38
Item #851-2S-38
Robbins Standing Seam Base; 3/8"; cast bronze with swivel; fits 13/16" max seam width; fits class I and class II conductors thru .563" diameter; base ... (see more)
 1.16 lbs. $42.00* EA
Item #851-2S-12
851-2S-12
Item #851-2S-12
Robbins Standing Seam Base; 1/2"; cast bronze with swivel; fits 13/16" max seam width; fits class I and class II conductors thru .563" diameter; base ... (see more)
 1.15 lbs. $42.00* EA
Item #A851-2S-12
A851-2S-12
Item #A851-2S-12
Robbins Standing Seam Base; 1/2"; Aluminum with Swivel; Fits conductor sizes .500 to .625; Base has bolts on both sides for centering and fits max 13/... (see more)
 0.45 lbs. $24.00* EA
Item #A851-2S-58
A851-2S-58
Item #A851-2S-58
Robbins Standing Seam Base; 5/8"; Aluminum with Swivel; Fits conductor sizes .500 to .625; Base has bolts on both sides for centering and fits max 13/... (see more)
 0.45 lbs. $24.00* EA
Item #A851-12
A851-12
Item #A851-12 		Robbins Standing Seam Base; 1/2"; cast aluminum with swivel; fits 13/16" max seam width and conductor sizes .500 to .625; UL Listed 0.42 lbs. $23.00* EA
Item #A851-58
A851-58
Item #A851-58 		Robbins Standing Seam Base; 5/8"; cast aluminum with swivel; fits 13/16" max seam width and conductor sizes .500 to .625; UL Listed 0.42 lbs. $23.00* EA
Item #852-38
852-38
Item #852-38 		Robbins Standing Seam Base; 3/8"; bronze/stainless; fits 1-3/8" max seam width and conductor sizes 0.375to 0.563; UL Listed 1.07 lbs. $35.50* EA
Item #852-12
852-12
Item #852-12 		Robbins Standing Seam Base; 1/2"; bronze/stainless; fits 1-3/8" max seam width and conductor sizes 0.375to 0.563; UL Listed 1.05 lbs. $35.50* EA
Item #852-58
852-58
Item #852-58 		Robbins Standing Seam Base; 5/8"; bronze/stainless; fits 1-3/8" max seam width and conductor sizes 0.375to 0.563; UL Listed 0.98 lbs. $37.00* EA
Item #852-2S-38
852-2S-38
Item #852-2S-38
Robbins Standing Seam Base; 3/8"; Bronze/Stainless; Fits conductor sizes 0.375 to 0.563; Base has bolts on both sides for centering and fits up to 1-... (see more)
 1.20 lbs. $38.00* EA
Item #852-2S-12
852-2S-12
Item #852-2S-12
Robbins Standing Seam Base; 1/2"; Bronze/Stainless; Fits conductor sizes 0.375 to 0.563; Base has bolts on both sides for centering and fits up to 1-... (see more)
 0 lbs. $38.00* EA
Item #A852-12
A852-12
Item #A852-12 		Robbins Standing Seam Base; 1/2"; aluminum; fits 1-3/8" max seam width and conductor sizes 0.500 to 0.625; UL Listed 0.74 lbs. $23.00* EA
Item #A852-58
A852-58
Item #A852-58 		Robbins Standing Seam Base; 5/8"; aluminum; fits 1-3/8" max seam width and conductor sizes 0.500 to 0.625; UL Listed 0.72 lbs. $23.00* EA
Item #A852-2S-12
A852-2S-12
Item #A852-2S-12 		Robbins Standing Seam Base; 1/2"; Aluminum; fits 1-3/8" max seam width and conductor sizes .500 to .625; Base has bolts on both sides for centering; UL Listed 0.80 lbs. $24.00* EA
Item #A852-2S-58
A852-2S-58
Item #A852-2S-58 		Robbins Standing Seam Base; 5/8"; Aluminum; fits 1-3/8" max seam width and conductor sizes .500 to .625; Base has bolts on both sides for centering; UL Listed 0.80 lbs. $24.00* EA

* Pricing subject to change on this item

**Product received may vary from photo

Featured Products

  • 8' x 8' Lightweight Platform Kit
    8' x 8' Lightweight Platform Kit

    Lightweight Platform; 8' x 8'; Adjustable top deck height from 18-1/2" to 26-1/2"; Includes: full coverage canopy & equipment rack, (3) unistrut, & hardware for attachment to uprights on canopy; Light field drilling required

    View Details
  • #6 Tinned Long Barrel with Inspection Window Compression Lug
    #6 Tinned Long Barrel with Inspection Window Compression Lug

    Compression Lug; Tinned copper; Long barrel; #6 wire; 1/4" one hole; Inspection window; Blue color code

    View Details
  • Aluminum Dual side/Top mount Lightning Rod Base
    Aluminum Dual side/Top mount Lightning Rod Base

    Dual Side/ Top Mount Base; Aluminum; 1/2"; Internal thread; Fits conductor sizes 0.292 to 0.562; UL Listed

    View Details
View All