M4 Rubber Mounts Shock Absorbers Anti Vibration Silentblock Car Boat Bobbins, Pack of 4 (M4 10x10mm)

Specifications:Thread Diameter: 8mm (M8) / 0.31"M8 Thread Size: 8 x 23mm / 0.31" x 0.91"M8 Rubber Size: 30 x 20mm / 1.18" x 0.79"M8 Package Weight: 166gApplication field:--1. Electron components --2. Medical equipment --3. Home appliance--4. Mechanical equipment--5. Office facilities--6. Aviation--7. Construction--8. Automobile--9. Air compressors--10.Diesel engines--11.Gasoline engines--12.Water pumpsPackage Includes:4 x Rubber MountsNote:1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.2. Item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.Q:Can they be mounted vertically and support 10lbs?A:Probably. How much vibration is a factor. You can get M10s,which are stronger.Q:what material is the metal hardware? Stainless or carbon steel?A:plated carbon steel, nickel or cadmium looksQ:Can this use for gasoline engines?A:I put mounts on my generator on my boat they seem to be working greatQ:Can these be threaded together?A:yes but the stud needs to be made shorter