• Sourcing Solutions
  • Services & Membership
  • Help & Community
About product and suppliers:
        Alibaba.com offers 1,628 manual screw jack products. About 46% of these are car jacks, 24% are speed reducers, and 2% are ladder & scaffolding parts. 

A wide variety of manual screw jack options are available to you, such as worm, helical, and bevel / miter. You can also choose from paid samples, free samples. 

There are 1,628 manual screw jack suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of manual screw jack respectively. 

Manual screw jack products are most popular in North America, Domestic Market, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 759 with ISO9001, 203 with Other, and 78 with ISO14001 certification.