Safety shackles are fitted with which items?

Safety shackles are fitted with which items?

Question 1 of 2707066636ef128f7522a1c5225c2

Safety shackles are fitted with which items?

Question 1 of 27070

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Q

Safety shackles are fitted with which items?

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🔍 Key Concepts

• Differences between standard shackles and safety shackles • How a threaded bolt (screw pin) is secured so it cannot back out under vibration or load • Typical secondary locking devices used on rigging hardware to prevent accidental opening

💭 Think About

• Think about which design would best prevent the pin or bolt from loosening on its own during heavy seas or repeated loading. • Consider which combination of hardware provides both an adjustable connection (can be screwed in) and a positive mechanical lock that keeps it from turning. • Ask yourself: which option has a main securing part AND an additional locking feature so that if one method fails, the other still holds it in place?

✅ Before You Answer

• Verify which choice includes a threaded bolt (screw-type pin) AND at least one separate locking device. • Check whether the option provides two levels of security, not just a single pin or nut holding the shackle closed. • Eliminate any answer that could easily work loose with only one simple retaining part and no backup lock.