Hard needle is another term for Turnbuckle or screw. The function of the hard needle itself is to regulate the tension of the sling, whether it is wire rope slings, chain slings or rope slings and synthetic slings.

Hard needles are divided into 5 types including:

Hook & Hook type hard needles

Hook & Eye type hard needles

Eye & Eye type hard needles

Eye & Jaw type hard needles

Jaw & Jaw type hard needles