PVC Hex Nuts Corrosion Resistant Polyvinyl Chloride Resin Hexagonal Plastic Poly Gray Color Anti Acid Alkali Panels Lightweight Insulated Fasteners M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20

Description

PVC hex nuts are six-sided general purpose fasteners with internal screw threads. For similar reasons as the bolt head – 6 sides give a good granularity of angles for a tool to approach from (good in tight spots), but more (and smaller) corners would be vulnerable to being rounded off. It takes only 1/6th of a rotation to obtain the next side of the hexagon and grip is optimal. However, polygons with more than 6 sides do not give the requisite grip and polygons with fewer than 6 sides take more time to be given a complete rotation. Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts (e.g. cage nuts) for inaccessible areas. Ever Hardware provides precision PVC hex nuts and customizable packaging.
PVC has high hardness and mechanical properties. The mechanical properties enhance with the molecular weight increase but decrease with the temperature increasing. The mechanical properties of rigid PVC (uPVC) are very good; the elastic modulus can reach 1500-3,000 MPa. The soft PVC (flexible PVC) elastic limit is 1.5–15 MPa.
The heat stability of raw PVC is very poor, so the addition of a heat stabilizer during the process is necessary in order to ensure the product’s properties. Traditional product PVC has a maximum operating temperature around 140°F (60°C) when heat distortion begins to occur. Melting temperatures range from 212°F to 500°F (100°C to 260°C) depending upon manufacture additives to the PVC. The linear expansion coefficient of rigid PVC is small and has good flame retardancy, the limiting oxygen index (LOI) being up to 45 or more. The LOI is the minimum concentration of oxygen, expressed as a percentage, that will support combustion of a polymer and noting that air has 20% content of oxygen. M3 PVC pan head screws are widely used on pipes/electric cables/construction/signs/clothing/furniture/healthcare/flooring/wire rope etc.