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Kozak Micro 
Adjusters

Why Our Metric Bushings and Set Screws Are Perfect for Your Business

Kozak Micro Adjusters has been providing the best of the best in precision components for 30 years and counting. In addition, our high-quality parts are backed by superior craftsmanship, hard work, and integrity.

We work with many ISO-certified businesses, and our quality assurance program is compliant to the requirements of MIL-I-45208A, meeting and even exceeding standards for a large range of clients. Our full machine shop is equipped and capable of manufacturing large quantities of your most essential parts.

Industries Our Metric Screws Serve

At Kozak Micro Adjusters, we help to provide the highest quality metric set screws and metric bushings for many industries and products. Some of the industries we serve include:
  • Photo optics
  • Photonics
  • Laser sector
  • Analytical chemistry
  • Diagnostic equipment 
  • Packaging
  • Industrial gas flow
  • And more!
Our diversity in industries has helped us to gain an understanding of a range of client needs and application demands, making us better able to supply precision in our products.

On top of it all, we provide many additional services for our customers including proactive response time, prompt deliveries, and even free quotes for future projects. And we’re always here to help, even after we’ve provided products for you company.

Contact Us Today to Learn More About Our Metric Fine Adjustment Screws and More!

In need of metric bushings and metrics screws? Choose an adjustment screw manufacturer with extensive experience in your industry. Reach out to us today at Kozak Micro Adjusters.

We will assess your needs and provide the proper recommendations. We look forward to working with you!
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All Categories > Zero-Backlash Adjustable Bushing and Screw Sets > Zero-Backlash Imperial (US) Adjustable Bushing & Screws > 1/4-80 Adjustable Sets > View Items  

1/4-80 Adjustable Sets

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Our imperial sized adjustable screw and bushings have been designed to give the user the most precise positioning available in the industry. This new design allows for the thread class to be adjusted internally using our custom wrench. The threads can also be locked in place, serving the same function as a lock-nut, but with a significant improvement: no backlash. This is achieved through our patented locking mechanism which prevents any axial movement (creep/backlash) when fully locked.  These matched sets are ideal for highly sensitive systems that require sub micron resolution and precision positioning.


Our highly developed proprietary machining and custom modified machines enable us to produce our 80 TPI adjusters to standards that exceed industry standards.

Note: The wrench used for our adjustable screw and bushing sets must be purchased individually (wrench not included with purchase of adjustable screw and bushing set).






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Item #

Thread Diameter

Thread Pitch

Screw Length Decimal

Ball Tip Diameter

Hex Drive

List Price

AB250-80-625-AA 1/4 in 80 TPI 0.625 in 0.187 in 5/64 in $18.87
AB250-80-750-AA 1/4 in 80 TPI .750 in 0.187 in 5/64 in $19.38
AB250-80-1000-AA 1/4 in 80 TPI 1.000 in 0.187 in 5/64 in $19.89
AB250-80-1250-AA 1/4 in 80 TPI 1.250 in 0.187 in 5/64 in $20.40
AB250-80-1500-AA 1/4 in 80 TPI 1.500 in 0.187 in 5/64 in $20.91
AB250-80-1750-AA 1/4 in 80 TPI 1.750 in 0.187 in 5/64 in $21.42
AB250-80-2000-AA 1/4 in 80 TPI 2.000 in 0.187 in 5/64 in $21.93
  Results 1 - 7 of 7 1 
MADE IN THE U.S.A