1Made of durable eco-friendly nylon PA66 which has the stable and long-lasting performance of acid resistant, alkali resistant, insulation and anti-signal inteference 2With smooth surface, clean and clear thread, they look very nice, quite convenient and practical to use 3There are different sizes available from which you can choose proper one for your building needs 4Ideal for mounting between PCB circuit boards and machine boards, working great for creating thermal channels between chips, or creating multistory 'nerd' arrays of home made circuit boards? 5They do not skid easily with appropriate use.Description: _x000D_These standoffs are made of durable and long-lasting eco-friendly Nylon PA66 which has the characteristics of insulation, Non-Magnetic,thermal insulation,corrosion resistance, etc, and perfectly suitable for mounting between PCB circuit boards and machine boards and widely applied to the industries of communication, electroplating, medical device, office equipment, electronics, etc. Clean pieces, no excess molding materials or anything to trim, snug fit, this is really a ideal set for your home projects! What are you waiting for? Get one set and make your life easier and more convenient!_x000D__x000D__x000D__x000D_Feature: _x000D_Made of durable eco-friendly nylon PA66 which has the stable and long-lasting performance of acid resistant, alkali resistant, insulation and anti-signal inteference. _x000D_With smooth surface, clean and clear thread, they look very nice, quite convenient and practical to use. _x000D_There are different sizes available from which you can choose proper one for your building needs. _x000D_Ideal for mounting between PCB circuit boards and machine boards, working great for creating thermal channels between chips, or creating multistory 'nerd' arrays of home made circuit boards. _x000D_They do not skid easily with appropriate use. _x000D__x000D__x000D_Specification: _x000D_Material: Nylon _x000D_Material Grade: PA66 eco-friendly Nylon _x000D_Color: Black _x000D_Thread Type: M3 _x000D_Shape: Hexagonal _x000D_Working Temperature: -20-120 _x000D_Fire Proof Requirement: 94-V2 _x000D_Standoff Length: 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 18mm, 20mm, 25mm(optional) _x000D_Package Weight: 15-60g _x000D_Quantity: 100pcs / bag _x000D__x000D__x000D_Package Included: _x000D_1 x bag of standoffs