The hardware behind every safe rooftop.
The Thaler line of fall arrest roof anchors, wall anchors, and davit systems — engineered by Thaler Metal Industries, then specified, installed, load-tested, and certified on your building by Northern Anchors.
Fall arrest anchors for every roof, wall, and structure.
Northern Anchors specifies, installs, and certifies the Thaler Metal Industries anchor line — bolt-through, adhesive, cast-in-place, weldable and joist-mounted roof anchors, wall anchors, terrace anchors, and davit systems.
Application: Roof Anchors
Deck-mounted anchors for flat roofs — a urethane-insulated hollow steel post paired with the fastening method matched to the structure below.
Bolt-Through Roof Anchor
Urethane-insulated hollow steel post with base plate, stainless steel bolt, flashing sleeve and stainless underdeck plate. Eye options: galvanized forged, stainless forged, or stainless U-bolt. Ideal for re-roofing — secures lifelines, outrigger tie-backs, parapet clamps and boatswain chairs.
Concrete deck — through-bolted
Adhesive Bolt Roof Anchor
Urethane-insulated hollow steel post with base plate, fastened into cured concrete with a stainless adhesive bolt. Eye options: galvanized forged, stainless forged, or stainless U-bolt.
Concrete deck — adhesive bolt
Bolt Around Beam Roof Anchor
Urethane-insulated hollow steel post and base plate that wraps and bolts around the structural steel beam below the deck — no deck penetration required.
Steel deck — bolt around beam
Weldable Roof Anchor
Urethane-insulated hollow steel post with base plate, factory-ready for direct welding to structural steel — the most unambiguous load path on steel structures.
Steel deck — welded to structure
Cast-In-Place Roof Anchor
Urethane-insulated hollow steel post set into the concrete pour at time of construction — the fastening is embedded in the structure itself.
Concrete deck — cast into the pour
Bolt Around OWSJ Roof Anchor
Urethane-insulated hollow steel post and base plate that bolts around the open web steel joist carrying the roof structure — no deck penetration required.
Steel joist — bolt around OWSJ
Pre-Cast Core Bolt Roof Anchor
Urethane-insulated hollow steel post with base plate, fastened into the hollow core of pre-cast concrete planks with a stainless steel bolt.
Pre-cast plank — core bolt
Application: Wall Anchors
Face-mounted anchors for structurally sound concrete walls, parapets, penthouses and mechanical rooms.
Wall Anchor — Bolt-Through
Stainless steel bolt with back-up plate. Eye options: galvanized forged or stainless U-bolt. Secures worker lifelines and ties back outrigger beams and parapet wall clamps.
Concrete wall — through-bolted
Wall Anchor — Cast-In-Place
Stainless steel bolt, lock washer and nut cast into the wall at time of construction — the anchorage is part of the structure itself.
Concrete wall — cast into the pour
Wall Anchor — Adhesive Bolt
Anchor eye welded to a wall plate and secured with a stainless adhesive bolt into cured concrete.
Concrete wall — adhesive bolt
Wall Anchor — Cladding-Bolt
Anchor eye welded to a cladding spacer with a stainless steel bolt — engineered for cladded wall assemblies.
Cladded wall assembly
Wall Anchor — Pier Bolt
Eye with bolt and pier plate, HSS welded to a base plate — for mounting to concrete piers and columns.
Concrete pier / column
Application: Terrace & Suspension Systems
Recessed anchors for pedestrian terraces, rope-stop anchors, and davit systems for suspended access work.
Terrace Anchor — Adhesive Bolt
Recessed anchor with a flat stainless steel surface that sits flush with pedestrian terrace surfaces — secured by stainless adhesive bolt.
Terrace deck — recessed, adhesive bolt
High Fall Arrest Terrace Anchor
The high-profile version of the terrace anchor, built for thicker terrace and podium deck assemblies.
Terrace / podium deck
"Rope Stop" Anchor
Fall arrest rope-stop anchors available in three models — through-bolt for flat roofs plus versions for sloped roof applications.
Flat or sloped roofs
Davit Arm Base
Urethane-insulated HSS with base plate and davit arm holder — the permanent deck socket that receives the davit arm for suspended access.
Deck-mounted socket
Davit Arm
Round extruded aluminum davit arm for window cleaning and exterior building maintenance — drops into the deck-mounted davit base.
Pairs with the davit base
Products shown: the Thaler Metal Industries fall arrest anchor line. Engineering, installation, load testing, and certification by Northern Anchors.