machine knobs with female thread size of M8 and M10 You can use it as a jack nut so the female hole needs to pass all the way through the plastic body. Threads is metal.
5/16" - 18 x 1" thread square tube insert plastic leveler nylon 5/16-18 Item No.：TN022 product size：30mm square tube with net，M8
leveler nylon 5/16-18 square tube insert plastic leveler nylon base 5/16-18 ITEM:TN020 SIZE：20MM square tube with net screw size：M6/M8
2 inch swivel PU chair castor wheels for office chairs
Specifications 1.High Quality Control and lower price, 2.Professional manufacturer in china , 3. Various sizes and design are available Sampling Sample Lead Time: 1-3 days for standard products, special sample need 7-15 days or more...
1. side brake ball caster; 2. ball color is black, red or orange; 3. metric or inch thread