Our 1/4-100 (100 TPI) ultra-fine adjusters are available in lengths from 5/16" to 4.0", are supplied with a 53 HRC .156" or .187" diameter tip, and provide sub-micron sensitivity. This makes them an ideal alternative to more costly micrometers where position-indicated readout is not a necessity. Our ultra-fine adjusters are HEX driven and optional knobs and drive types are available. Thread class exceeds 3A.

Note: Kozak Micro cannot guarantee that our screws and bushings will be compatible with screws and bushings sold by other manufacturers.

For mobile shopping: See products and specs in the table below. Scroll to the left to see more information and to add it to your cart.

45 products
Item # Thread Diameter Thread Pitch Screw Length Fractional Ball Tip Diameter Hex Drive List Price Actions
Item # TS250-100-2750-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-2750-aa 1/4 in 100 TPI 2-3/4 in 0.187 in 5/64 in
$9.97
$9.97
$9.77
Sold out
Item # TS250-100-3000, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3000 1/4 in 100 TPI 3 in 0.156 in 3/32 in
$10.61
$10.61
$10.40
Sold out
Item # TS250-100-3000-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3000-aa 1/4 in 100 TPI 3 in 0.187 in 5/64 in
$10.61
$10.61
$10.40
Sold out
Item # TS250-100-3125, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3125 1/4 in 100 TPI 3-1/8 in 0.156 in 3/32 in
$10.82
$10.82
$10.61
Sold out
Item # TS250-100-3125-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3125-aa 1/4 in 100 TPI 3-1/8 in 0.187 in 5/64 in
$10.82
$10.82
$10.61
Sold out
Item # TS250-100-3250, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3250 1/4 in 100 TPI 3-1/4 in 0.156 in 3/32 in
$10.99
$10.99
$10.77
Sold out
Item # TS250-100-3250-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3250-aa 1/4 in 100 TPI 3-1/4 in 0.187 in 5/64 in
$10.99
$10.99
$10.77
Sold out
Item # TS250-100-3500, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3500 1/4 in 100 TPI 3-1/2 in 0.156 in 3/32 in
$11.68
$11.68
$11.45
Sold out
Item # TS250-100-3500-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3500-aa 1/4 in 100 TPI 3-1/2 in 0.187 in 5/64 in
$11.68
$11.68
$11.45
Sold out
Item # TS250-100-3750, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3750 1/4 in 100 TPI 3-3/4 in 0.156 in 3/32 in
$12.23
$12.23
$11.99
Sold out
Item # TS250-100-3750-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-3750-aa 1/4 in 100 TPI 3-3/4 in 0.187 in 5/64 in
$12.23
$12.23
$11.99
Sold out
Item # TS250-100-4000, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-4000 1/4 in 100 TPI 4 in 0.156 in 3/32 in
$12.76
$12.76
$12.51
Sold out
Item # TS250-100-4000-AA, 1/4-100 TPI Imperial Fine Adjustment Screws
ts250-100-4000-aa 1/4 in 100 TPI 4 in 0.187 in 5/64 in
$12.76
$12.76
$12.51
Sold out

1/4-100 TPI Screws from Kozak Micro Adjusters

When it comes to TPI screws from Kozak Micro Adjusters, we have reliable and precise solutions. Our highly developed and custom-modified machinery allows us to supply solutions that are above industry standards.

For 1/4-100 TPI screws, 1/4 is referring to ¼ inch in diameter of the screw and 100 TPI is 100 threads per inch. 100 TPI is a very fine thread pitch, requiring a high thread engagement. Because of that, these types of screws are utilized in high-precision applications. Some of these applications include:

  • Optical and scientific instruments
  • Fine machinery
  • Robotics and automation
  • Aircraft assembly
  • Microelectronics

Choose 1/4-100 Adjustment Screws from Kozak

For over 30 years, Kozak has provided clients with quality screw adjustment solutions in New Jersey and beyond. We are a full-service machine shop that can provide quantities of 1 or 1,000,000 screws, while also providing quality customer service.

When you work with Kozak to receive 1/4-100 TPI screws, you also receive:

  • Quick deliveries
  • Prompt responses to inquiries
  • Competitive pricing
  • Free quotes
  • Quality control with full traceability
  • Knowledgeable and courteous staff
  • Quality technical and engineering support

FAQs About 1/4-100 TPI Screws and More 

Why choose a 100 TPI screw as opposed to one with a coarser thread per inch? 

As opposed to screws with a lower TPI, such as 40 or 50 units, 100 TPI screws provide better vibration resistance and more precise torque control, among other advantages. This makes them the best choice for manufacturing more delicate machinery where fine-tuning is required.

What are 1/4-100 adjustment screws made of? 

1/4-100 TPI screws are typically comprised of stainless steel to protect against potential rust and corrosion that can arise from long-term use in various environments. 

Additionally, stainless steel is a visually appealing choice, as it appears cleaner and more polished compared to other materials. This can be ideal for times when screws are visible, like in robotics or aircraft assembly applications.

What other fine adjustment screws do you offer? 

Beyond our 1/4-100 TPI screws, we also offer 1/4-80 adjustment screws for those needing components with fewer threads per inch. Other relevant products often used in fine adjustment screw applications include the following:

What industries do you serve? 

At Kozak, we’re proud to provide 1/4-100 adjustment screws to the following industries: 

 

Contact Us to Learn More

Looking for reliable 1/4-100 adjustment screws and need someone with extensive expertise? Kozak Micro Adjusters has the solutions for you. Reach out to us with any questions!