OD 6-25mm 99.9% Pure Copper Thread Balls M3/M4/M5/M6/M10/M12 Solid Half-Hole Balls Blind Hole Thread Ball 8/10/12/15/16/17/20mm(21.5mm - M4x0.7,10pcs)

Specifications:Name:Pure Copper Thread BallsMaterial:99.9% Pure Copper Outer Diameter:6mm-25mmThread Hole:M3-M12Tolerance:±0.1mmFeatures:high hardness, good roundness, wear resistanceApplications:Thread pure copper balls, no magnetic or weak magnetic, can be used for decorations, teaching experiments, mechanical accessories, hardware accessories, DIY Buddhist beads bracelet and so on==========Hign-concerned Chemical : NoneType : Hand Tool PartsOrigin : China

• 【Surface Degree】: the blind hole threaded ball surface mirror luster, no burr, smooth
• 【Advantages】: small coefficient of friction, high precision, high hardness, high temperature
• 【Product Function】: Mainly used in: Mechanical Connection: through the threads and holes with the holes, to achieve the components of the removable fixing; Fluid Control: as a sealing component of the valves or pipelines (such as the ball in the ball valves); support and transmission and so on
• 【Drilling Design】: the center hole The center hole may be through-hole (for fluid passage) or threaded blind hole (for connection purpose).
• 【Material】: Made of high quality material, with high temperature resistance, corrosion resistance, high hardness, etc., to ensure durability.