DIN 7991 M20 Stainless Steel Hexagon Socket Countersunk Head Cap Screws

DIN 7991 Coarse Threaded Stainless Steel M2-M40 Hexagon Socket Countersunk Head Cap Screws
 

 

1. Product Description

 

Hex socket head shoulder screws are a type of fastener that features a step or shoulder, also known as step screws. These screws can have either a knurled head or a smooth surface, depending on the design and application. A hex socket shoulder screw is commonly made from metal and has an external thread, making it similar to a bolt in some aspects. The shoulder or step on the screw allows for rotation and movement of the material around the screw axis, while the threaded end is usually secured with a nut to maintain position. These types of screws are typically used in applications requiring drilled holes and are ideal for machinery that experiences vibration or temperature fluctuations. They are also sometimes referred to as stripper bolts.

A shoulder screw functions like an inclined plane wrapped around a nail. Some threads are designed to mate with internal threads found in nuts or other components, while others are engineered to cut into softer materials when inserted. The primary purpose of screws is to hold objects together or to position them accurately. The collar of the machine screw helps reduce the risk of damage to the part being fastened and ensures a secure connection, especially on uneven surfaces.

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4. Advantages

 

These screws are a popular choice for fastening due to their high tensile strength, strong holding power, and excellent corrosion resistance without the need for additional coatings. With competitive pricing and reliable factory supply, they offer a perfect solution for fastening needs. Backed by 10 years of industry experience, we provide a wide range of parts and ensure durability through rigorous testing and advanced technical design. Whether you're working on machinery, industrial equipment, or any precision application, these DIN 7991 screws deliver long-lasting performance and reliability.

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