ISC Twister Steel Supersafe Carabiner

The Supersafe mechanism is a triple-action lock that requires three distinct movements—slide, twist, and pull—to open the gate. This design significantly reduces the risk of accidental opening, providing an extra layer of security for critical applications.

Yes, with a minimum breaking strength of 40kN and steel construction, it is built for demanding environments. It is fully compliant with CE EN 362 standards, making it appropriate for professional work-at-height and rescue operations.

At 330 grams, this steel carabiner is noticeably heavier than aluminum equivalents. While this adds weight to your kit, the trade-off is superior durability and resistance to wear, which is often preferred in high-friction or abrasive industrial settings.

The 18mm gate opening is standard for this size and is adequate for most ropes, slings, and attachment points. However, if you frequently work with very thick rigging or multiple connections, you may want to verify that your specific hardware fits comfortably within that clearance.

The zinc plating offers good corrosion resistance, but like all steel gear, it should be kept clean and dry. If exposed to salt water or harsh chemicals, rinse it with fresh water and ensure it is completely dry before storage to prevent surface oxidation.