What type of fastener creates a secure attachment in equipment rigging?

A clevis is a type of fastener that is particularly effective in creating a secure attachment in equipment rigging because of its design and functionality. Clevises typically consist of a forked end that allows for the attachment of a pin, which can secure the connection between two components. This design provides a strong, reliable point of attachment that can withstand significant loads, making it ideal for rigging operations where safety and stability are paramount.

In contrast, while clips can hold items together, they may not provide the same level of strength or security required for heavier loads in rigging scenarios. Nuts are used to secure bolts but do not directly attach two components like a clevis does; they require a bolt to function. Washers serve to distribute load and prevent damage to surfaces but do not create an attachment on their own. Thus, the clevis stands out as the most suitable fastener for the demands of equipment rigging.