PATIKIL M4 Aluminum Spacer, 10 Pack 4.2mm ID x 8mm OD x 2mm L Metal Spacer Aluminum Round Plain Finish Spacer Screw Standoff for 3/16" or M4 Screw Bolts
Color: Silver; Size: 4.2 x 10 x 10 mm / 0.17 x 0.39 x 0.39 inch (ID*OD*L); Fit Screw Bolts Size: M4
Advantage: Made of durable Aluminum material, which is hard, good performance, good electrical conductivity, corrosion resistance and can be used for a long time.
Instruction: Easy to use, just need to install on the screw bolts with proper diameter.
Application: This Aluminum spacer can be widely used in high-temperature, high-pressure, and highly corrosive pressure, valves, sealing parts of cylinder heads, and industries such as steel mills, chemical equipment, and engineering machinery.
Note: Please select the appropriate size according to your needs.