Click to ExpandSealing Socket Head Cap Screws

Socket to Me!

APM Hexseal’s sealing socket head cap screws are the big thing that fits in small places! These screws feature a barrel-shaped head with a recessed hexagonal drive. The head is dimensionally smaller than most other standard screws, making it well-suited for confined areas of installation. In addition to its streamlined design and high-performance sealing, our sealing socket head cap screws offer a range of other benefits that make them a great choice for numerous applications.

High-Performance Sealing in a Streamlined Design

APM Hexseal’s socket head cap screws are designed for tight spaces and applications where aesthetics might be important. It can achieve the same or greater clamping force as a standard screw while its sleek and attractive design offers a clean appearance with no protrusions.

Our socket head features a customized groove under the head that contains an inserted O-ring. The addition of the O-ring helps to create a reliable seal and provides protection for even the most sensitive systems and components. Socket head seal screws from APM Hexseal are available with a wide range of O-ring materials and deliver the same high-performing seal you have come to expect from our products.


APM Hexseal’s sealing socket head cap screws are used in various applications requiring a secure and leakproof connection. Common applications include:

  • Automotive
  • Industrial Machinery
  • Excavation Equipment
  • Energy Generation
  • Furniture Manufacturing
  • Machining, Tool, and Die Manufacturing


Sealing socket head cap screws offer several advantages in various applications, especially where environmental sealing and protection are crucial. Key benefits include:

  • Reduces the total number of screws needed for an application, resulting in lower component costs
  • Lowers the number of holes needed to be drilled and tapped, reducing manufacturing costs
  • Reduces overall product weight due to lower component count
  • Suitable for use in small or tight spaces
  • Provides a cleaner appearance for the finished product
  • Delivers unmatched strength, economics, and reliability

High-Quality Sealing Socket Head Cap Screws

Since 1947, the experts at APM Hexseal have been developing and manufacturing high-quality sealing solutions that hold up in even the toughest environments. Our sealing socket head cap screws are designed to provide superior protection for applications with space limitations and a focus on aesthetics.

At APM Hexseal, quality is our number one priority. For more information about our sealing socket head cap screws and other sealing fastener solutions, ask the experts or request a quote today.

Ever Better.