CSQ184 Steel Quarter-Turn Locking Carabiner, 5-Pack
The Frontline CSQ184 is the workhorse steel quarter-turn locking carabiner - the same connector that anchors the Frontline web SRLs. Self-closing and automatically locking by a quarter-turn nut, it gives a secure, rated connection at the anchor end of a connecting device.
Forged steel with a 5,000 lb minimum breaking strength and 3,600 lb gate face and side strengths, it is built to ANSI Z359.12 for connecting components and aligns with OSHA 1926 and 1910 - a dependable, economical steel connector for everyday fall protection connections.

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
The connector on Frontline web SRLs
The same steel carabiner that anchors the SRL line, sold on its own.
Deliberate two-step to open
Self-closes and locks by a quarter-turn nut, so it cannot drift open in use.
Strong at the gate, not just the spine
Rated gate face and side strength resist off-axis loading.
The everyday workhorse
Economical steel for general anchor-end and system connections.
Load it along the spine
Built to carry the rated load down the long axis, never against the gate.
Stock the crew from one pack
The 5-pack covers multiple workers or replacement connectors.
Technical Specifications
| SKU | CSQ184 |
|---|---|
| Type | Steel quarter-turn locking carabiner |
| Locking | Self-closing, automatic locking, quarter-turn nut |
| Material | Forged steel |
| Min breaking strength | 5,000 lbs |
| Gate face / side strength | 3,600 lbs |
| Used on | Frontline web SRLs (anchor end) |
| Standards | ANSI Z359.12; OSHA 1926; OSHA 1910 |
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 CSQ184
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.
Frequently Asked Questions
Frontline CSQ184 Submittals and Documentation
Frontline CSQ184 Spec Sheet (PDF)Gate opening, strengths, materials, and standards. Frontline Catalog (PDF)The full Frontline Fall Protection product catalog.Compatible and Related Products
- Frontline RPW061S Web SRL. A web SRL that uses this carabiner.
- Frontline CAQ117 Aluminum Carabiner. The lightweight aluminum version.
- 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.
