Which Fasteners Have LARR (Los Angeles Research Reports) Approvals?

If you’re building a construction project in the city of Los Angeles, you’re going to need to work with the Los Angeles Department of Building and Safety (LADBS). All fasteners used in construction projects in Los Angeles must meet city code, and at times that requires a Los Angeles Research Report (LARR).

An LARR is an approval for material used in Los Angeles construction projects that are at least equivalent to what is specified in the code, in terms of quality, strength, fire resistance, effectiveness, safety and durability. Here, we’ll explore which fasteners have a pre-existing LARR, making them easier to get approved for use in Los Angeles city construction projects.

Powers Fasteners has a plethora of products with LARR approvals available:

  • Powers Snake+ Anchors for Cracked and Uncracked Concrete

  • Powers Wedge Bolt+ Screw Anchors in Cracked and Uncracked Concrete

  • Powers PE1000+ Epoxy Adhesive Anchor System in Cracked and Uncracked Concrete

  • Powers Wood-Knocker Concrete Inserts and Bang-It Concrete Inserts for Steel Deck in Cracked and Uncracked Concrete

  • Powers Power-Stud +SD2, Carbon Steel Anchors, SD4,SD6 Stainless Steel Anchors in Cracked and Uncracked Concrete

  • Powers Powder Actuated Fasteners, Ceiling Clip Assemblies and Sill Plate Anchorage

  • Powers Trak-IT Fasteners for Concrete, Masonry and Steel

  • Pure 110+Epoxy Adhesive Anchors System in Cracked and Uncracked Concrete

  • Powers Power-Stud + SD1 Expansion Anchors for Craked and Uncraked Concrete

  • Powers Trak-It C4 Fasteners

  • Powers Power-Stud + SD1 Anchors in Masonry

  • Powers Trak-It C5 Gas Operated Fasteners for Concrete, Masonry, and Steel

  • Powers 8mm Head Spiral CSI Pin, 10mm Head Drive Pin Power Driven Fasteners, and 8mm Head Spiral CSI Pin & Ceiling Clip Assembly

From Elco Construction, the massively popular Bi-Flex screws have LARR approvals. These stainless steel bi-metal self-drilling screws are used in curtain wall, window wall, architectural railings and more.

Hilti also offers a large selection of products with LARRs:

  • Hilti Bi-Metal Kwik-Flex Structural Fasteners for cold-formed steel, structural steel and aluminum

  • Steel Deck Diaphragms attached with Hilti S-MD 12-24 x 1 5/8M HWH5 Frame Fasteners

  • Hilti Kwik-Flex Structural Fasteners for Cold-Formed Steel and Aluminum

  • Hilti Low-Velocity Power Driven Fasteners

  • Hilti Low-Velocity X-U and X-U 15 Universal and X-P Concrete Powder Driven Fasteners

  • Hilti Low-Velocity Power Driven Track Fasteners

  • Hilti X-ENP-19-L15, X-EDN19-THQ12 and X-EDNK22-THQ12 Fasteners and Self-Drilling Screws, Button Punches for Steel Deck and Concrete-Filled Diaphragm Attachment.

  • Hilti X-HSN 24 Powder-Driven Fasteners for Attachment of Steel Deck Diaphragms

  • Hilti X-EDNK22 THQ12, X-EDN19 THQ12 OR X-ENP-19 L15 Power-Driven Fasteners and Hilti S-SLC01MHWH AND S-SLC02MHWH Sidelap Connectors

  • Hilti X-GPN 37 MX Power- Driven Fasteners Used to Attach Wood Structural Panels to Cold- Formed Steel Framing.

ITW Buildex has several products with approved LARRs, including ITW Buildex Teks Select™ self-drilling structural fasteners for cold formed steel and aluminum connections, as well as Gyp-Fast™ fasteners to attached gypsum sheathing to metal studs.

Lastly, Simpson Strong-Tie offers GDP Gas Actuated Fasteners and Powder-Actuated Fasteners with Los Angeles Research Report approvals.

If you need help sourcing fasteners with LARRs, contact Mudge Fasteners at (800) 634-0406. We’ll be happy to help you get what you need.

Kyle Domer