10pcs M5x16mm Flat Countersunk Head Hex Socket Left Hand Thread Bolt DIN7991 Electrical Repair these curtain rings are rust-proof

these curtain rings are rust-proof and can be used in humid places

aluminum washeres are especially suitable to use in high temperature environment

Material:nylon

* Fabric layers edge with raising treatment

Package Content:5 Pcs x Potentiometer Rotary Knob

10pcs M5x16mm Flat Countersunk Head Hex Socket Left Hand Thread Bolt DIN7991 Electrical Repair these curtain rings are rust-proofMade of 40Cr Steel material,black oxide finish,hex socket flat head,left hand reverse thread design. Fixing component, industrial and construction fasteners. To tighten a reverse threaded screw, you turn it counter clockwise. To loosen a reverse threaded screw, you turn it clockwise. Used widely in home, office and factory appliance, communication equipments, ship assembly and other machinery industry.