All our shackles are made in China, and are supplied highly polished.
Material is stainless steel
The shake proof shackle has both heads threaded. The pin will not fall out, but may still be unscrewed from the partially threaded second head.
The shake proof shackle pin incorporates an innovative polyurathane ring which enhances the fit of the shackle pin. Once in position the shackle pin will not vibrate loose.
The shake proof shackle incorporates the Smart-Lock pin. This pin benefits from a unique locking mechanism. When the ring is threaded into the shackle body the ring acts like a viscous liquid and binds itself to the internal threads in the shackle head.
1. How do we control quality?
a) Pay attention to adaptation for manufacture process
b) Approval report for shipment
c) Third party inspection is accepted
d) Keeping quality guarantee for a long period
e) Guaranteeing quality inspection of each product before assembly and packing.
f) Comply with ISO 9001
2. Are we a factory or a trading company?
We are a factory manufacturing .Our products mainly consist of: forged riggings, hoisting pulley block, clevis hooks, eye hooks, safety hooks, swivel hooks, shackles and so on. With the passed 10 years of hard work and pursuit of better quality.
3. What are our advantages over others?
a) QINGDAO SINCERE METAL PRODUCTS COMPANY could make the clients' ideas to be actual products with support from related engineers from different fields.
b) Producing and designing forging, casting and stamping parts has made our company in a strong position in the OEM and ODM market.
c) QINGDAO SINCERE METAL PRODUCTS COMPANYbusiness is to help the overseas clients to get high quality products with fair price in China.
d) Any request from the clients would be treated carefully by our experienced staff, the quality of any order would be highly controlled by our skilled engineers.
e) QINGDAO SINCERE METAL PRODUCTS COMPANY teams would like to welcome clients from home and abroad to work for the win-win situation and reach our target: Making Business More Fun!
Audited Supplier 
All our shackles are made in China, and are supplied highly polished.
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