Design and Manufacture of Captive Spring Loaded Screw Knob Fasteners
SRS Industries
No More Loose Knobs or Hardware
These innovative captive knob assemblies remain securely attached to the product, effectively eliminating the risk of losing any fastening hardware. This design feature allows for a faster and more efficient changeover and setup process. Remarkably, no tools are required for installation or adjustment, which greatly enhances convenience and productivity.
Industrial – Medical – Aerospace – Marine – Defense Industry – Specialty Applications

Factory Direct Sales 1.630.569.5007 Made in the USA
SRS Industries was established in 1974 as a fully operational division of RCS Engineering Corporation.
SRS Industries, specifically oriented to meet the dynamic needs of the
industrial, medical, aerospace, marine and defense industry, represents over 100
leading manufacturers of quality products and is backed by decades
of knowledge and superior customer service.
Knob Assemblies stay attached to your product allowing fast changes and setups, as well as eliminating lost clamping knobs/hardware. No tools required
SRS Industries quality system complies to international qualitystandard
QS9000, ISO9001 and AS9000
With over 50 years of experience in the Design and Manufacturing Industry.
We Specialize In Heavy to Light Duty Captive Spring Loaded Screw Fasteners.
From heavy duty cast iron to our decorative aluminum, stainless steel and steel knobs.
Many Configurations To Choose From
We are here to meet your challenges and needs

Product and Tools
Specials
We understand that there are times that standard off the shelf items do not meet your needs.
This is where we shine !!
With over 50 years of experience, our design and machine shop staff is dedicated to today’s challenges.
Our machine shop specializes in precision work using the latest in CNC machines.
Our engineering staff is supported with the latest in Cad System technology.
This technology and hands on experience allows us to look at your needs with out expensive and time consuming prototypes.
We promise you the highest quality which is demanded of us in today’s industries.
Contact us today with your special needs.
Customer reviews
This innovative fastener solution has streamlined our manufacturing and production processes, delivering significant cost savings for our tooling operations.
This captive fastener is a versatile tool that serves as both a secure fastener and a convenient grip handle. It enables quick and easy tool changes, making your work more efficient and streamlined.
WE have used this innovative captive fastener design for many years on our product line, it ensures the hardware stays securely attached to our product, eliminating the risk of lost components. We highly recommend this reliable solution.
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