Sleeve thin-walled design:
The sleeve and the nut are more fully contacted, thereby reducing the damage to the tool and the nut, extending the service life and durability.
*Special rivets , not loose / deformed.
*High hardness, toughness, strong and durable.
*Non slip, service life..
https://www.blackhardwareplt.com.my/showproducts/productid/4409798/
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