Which method is recommended for safely connecting two synthetic web slings?

Using a shackle to connect two synthetic web slings is the recommended method because it ensures a secure and reliable connection while maintaining the integrity of the slings. Shackles are designed specifically for this purpose and provide a robust attachment point that can handle heavy loads without compromising safety.

When using a shackle, it is important to ensure that the shackle is correctly sized and rated for the load being lifted. This method allows for proper load distribution and reduces the risk of slippage or accidental disconnection during operation. Additionally, shackles can be easily inspected for wear and damage, contributing to safe lifting practices.

In contrast, tying slings directly in a knot can decrease their strength and could lead to failure under load. Wrapping one sling around another may not provide the necessary support or stability and can cause uneven loading. Attaching slings with tape is not a viable method for securing connections, as tape does not provide the necessary strength and can deteriorate quickly under load or environmental conditions.