The ultimate solution for attaching and securing all concrete applications. The NB3C2 features an “internal waterproof threaded port,” allowing for easy bolt-on attachments.  

Description:

• Patent Pending
• 304 Stainless Steel
• Flange: 2” Diameter x 1/8” Thick
• ½”-13 x 1-1/4” internal threaded port
• Concrete Lag: ¾” diameter x 4” long
• 1/2” Allen key insert for easy installation

Product Specifications:

Lag Diameter: ¾” (outside diameter of lag)

Lag Length: 4” (under flange to end of lag)

Flange Diameter: 2” (outside diameter of the flange)

Flange thickness: ⅛” (overall thickness of flange)

Internal threaded port size: ½”-13

Internal threaded port depth: 1 1/4”

Full product specs and design values: click here 

Installation Instructions:

Substrate Requirements

• The NB3C2  fastener must be installed into a solid substrate that meets the project engineer’s specifications.
•  Approved substrate: Concrete

Layout & Predrilling

• Mark out NB3C2 fasteners to the desired attachment locations on the already waterproofed or membraned surface.
•  Predrill marked locations using: ¾” x 4.25” long drill bit.
• Hole cleaning: Insert the nozzle of an air compressor or air pump to the bottom of the hole and blow out debris. Repeat twice.

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Waterproofing-Sealing

• Apply sealant in and around predrilled hole according to roofing manufactures compatibility guidelines

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 Installation & Attachment

• Drive the NB3C2 into the predrilled hole using a 1/2” allen key bit until the flange compresses directly on the waterproofed or membraned surface creating a gasket seal.
• Bolt the attachment into the internal threaded port on the NB3C2 with 1/2-13 bolt using a hand tool only
• Ensure bolt is fully seated in the port without bottoming out
• Do not use power tools for final tightening of attachment.

For full installation details, engineering data, 

and updated specifications click here:  NB3C2- Concrete attachment Fastener