The Safety Hook - Thiele TWN 0799 Clevis 20mm 12.5T is built for serious lifting tasks where safety, reliability, and quick hook-up matter most. This self-locking trigger hook combines German engineering with EN1677 compliance to deliver a dependable solution for heavy-duty rigging, maintenance, and material handling.

Key specifications that matter in real-world lifting

• Clevis size: 20 mm, designed for robust and secure attachment to standard fittings.
• Working load limit: 12.5 tons, giving you a clear, certified capacity for heavy lifts.
• Material and build: GK8 high-grade steel, manufactured in Germany for consistent toughness and long service life.
• Self-locking trigger: One-handed operation that securely locks the hook as you lift or move loads, reducing the risk of accidental release.
• Compliance: EN1677 standard, ensuring compatibility and safety with compatible lifting components.
• Brand and origin: Thiele craftsmanship, distributed by HES NZ LTD, with direct-supplier shipping to help you manage stock and reduce lead times.
• Product reference: Product No. F0922055, for easy ordering and traceability.
• Quality rating: Grade 80/rated design, built to withstand demanding industrial environments.

Why this hook stands out

Rather than a generic lifting hook, the TWN 0799 combines a secure clevis connection with a tactile, self-locking trigger that stays engaged under load until you release it. The German-made GK8 steel delivers consistently high impact resistance and fatigue strength, making it a dependable choice for daily rigging in construction, manufacturing, and logistics settings.

Practical use cases

• Heavy-load lifts on construction sites where quick hook engagement and reliable release control are critical.
• Rigging tasks in industrial plants, including crane-to-sling or hook-to-load setups that require EN1677-compatible hardware.
• Maintenance and equipment installation projects that demand a trustworthy, durable lifting hook with a clear weight rating.
• Shipyards or heavy manufacturing environments where consistent performance under repetitive cycles is essential.

Who benefits most

Rigging professionals, crane operators, and maintenance teams who need a high-capacity, compliant safety hook that minimizes handling errors and supports fast, safe operation. With direct supplier shipping and a clear product identity (F0922055), it’s easy to track, stock, and deploy where needed.

Choose the Safety Hook - Thiele TWN 0799 Clevis 20mm 12.5T for a trustworthy, standards-aligned lifting hook that keeps your team safer and your lifts more predictable from start to finish.