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IronRidge BX System Flat Roof Mounting Hardware Kit w/ L Feet, BX-MA-FRA-M1

Note: Strut Channel is not included in the kit and is sold separately.

The Attachment Kit uses an 8′ minimum Strut Channel to span across two Chassis and an FRA Anchor in order to anchor the Chassis to the roof. Secure L-Feet onto the Chassis by installing the Carriage Bolt and Square Washer from the underside of each Chassis through the reference hole. Torque Flange Nut to 120 in-lbs.

Assemble an L-Foot onto the Flat Roof Attachment and flashing membrane (where applicable) using the 3/8” Bolt and Flat Washer torqued to 250 in-lbs. Then, install L-Foot and Flat Roof Attachment assembly at the Strut Channel midpoint using the provided 3/8″ Bolt with a 1-1/4″ washer to a galvanized Channel Nut (as before) torqued to 250 in-lbs.

Kit Includes:

  • 3x Flat washers
  • 3x Hex bolts
  • 2x Carriage bolts
  • 2x Square washers
  • 2x Flange nuts
  • 3x L-feet


  • BX has an 8-10% increase in power density when compared with leading competitor systems
  • Provides an anchoring method with a variety of roofing membranes, making it possible to eliminate ballast weight, meet seismic requirements, or build hybrid systems
  • designed to offer protection for PV conductors and leads running row-to-row in the N-S direction
  • Fewer than 10 parts per project, with no wind deflectors required
  • Free online Design Assistant provides a bill of materials, ballast map, PE dry stamp, and more

Technical specifications

Material: Aluminum – Mill Finish / Stainless Steel
Product type: Ballast
Application: Flat Roof – Ballast

Mechanical data & components

Dimensions: 1.92 in (length) × 1.88 in (width) × 3 in (height)
Weight: 4.5 lb




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