CSQ120 Large Steel Tower Carabiner Hook, 3-Pack
The Frontline CSQ120 is a large steel tower carabiner hook with a wide 1.97 in gate opening - sized to capture the big structural members, rebar, and rungs that defeat a standard carabiner. Made from 0.55 in round alloy steel bar, it is self-closing and automatically locking by a quarter-turn nut.
The golden yellow / silver passivated finish stands up to tower and structural service, with a 5,000 lb minimum breaking strength and 3,600 lb gate face and side strengths. Built to ANSI Z359.12 for connecting components - the connector for tower climbers and ironworkers.
Who Needs This Product
This product is a connecting component - the rated link between elements of a personal fall arrest or restraint system. Workers use it to join lanyards, SRLs, anchors, and harness D-rings. It must be self-locking and size-and-shape compatible with what it connects to, and used only as part of a complete system with a full body harness.
Features
Wide 1.97 in gate
Captures large members, rungs, and rebar a standard carabiner cannot.
Heavy steel build
0.55 in round alloy steel bar for tower and structural service.
Quarter-turn auto lock
Self-closing and automatically locking, opened deliberately.
Tower-grade finish
Golden yellow / silver passivation resists corrosion.
5,000 lb rated
Full anchorage-grade minimum breaking strength.
Ironworker favorite
The big-gate connector for steel and tower work.
Technical Specifications
| SKU | CSQ120 |
|---|---|
| Type | Large steel tower carabiner hook |
| Gate opening | 1.97 in |
| Bar | 0.55 in round alloy steel |
| Locking | Self-closing, automatic locking, quarter-turn nut |
| Finish | Galvanized with golden yellow / silver passivation |
| Min breaking strength | 5,000 lbs |
| Gate face / side strength | 3,600 lbs |
| Weight | 1.65 lbs (+/- 0.02) |
| Standards | ANSI Z359.12 |
Self-locking and compatible, always. Use this connector only where its size and shape cannot roll out or load the gate against what it connects to. Never connect two snap hooks together, never load the gate, and confirm the keylock or quarter-turn lock is fully engaged before trusting the connection.
Compliance Standards
ANSI Z359.12
American National Standard for connecting components for personal fall arrest systems.
OSHA 29 CFR 1926.502
Federal construction fall protection criteria, including connector requirements.
OSHA 29 CFR 1910.140
General industry personal fall protection system requirements.
Typical Applications
How to Use the CSQ120
Follow the manufacturer's manual. The sequence below is an overview only.
- Inspect. Check the body, gate, and locking mechanism before each use.
- Check compatibility. Confirm the connector size and shape suit what it connects to - no roll-out risk.
- Connect. Open the gate, make the connection, and let the gate close.
- Lock it. Engage and confirm the keylock or quarter-turn lock is fully seated.
- Load correctly. Ensure the load runs along the spine, never against the gate.
Inspection and Retirement
Inspect before each use, with a documented competent-person inspection at least every 6 months. Pull the equipment from service for any of the conditions below.
- Visual: deformation, cracks, corrosion, or damaged welds on load-bearing parts.
- Moving/locking parts: gates, jaws, pins, and locks operate and lock positively.
- Connection points: D-rings, eyes, and hooks free of wear, elongation, or sharp edges.
- Fasteners: present, correct, and fully engaged per the manual.
- Markings: labels must be present and legible.
Retire the equipment immediately after any fall arrest event or if any inspection point fails. Destroy retired equipment so it cannot return to service.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
Frontline CSQ120 Submittals and Documentation
Frontline Hooks and Carabiners User Manual (PDF)Use, compatibility, inspection, and retirement. Frontline Catalog (PDF)The full Frontline Fall Protection product catalog.Compatible and Related Products
- Frontline CAQ117 Aluminum Carabiner. The light aluminum quarter-turn carabiner.
- Frontline CSQ275 Dual Connector. A dual connector for twin SRLs.
- Frontline 100CTB Combat Construction Harness. A harness to build the connection onto.
Building Out Fall Protection Connections?
The right connector depends on what it joins. Confirm your system and connection points with us and we will walk through the lineup so the right connectors ship together.
Call 863-703-4522 to talk to a fall protection specialist.
