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
Regular price
$9.77
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$9.77
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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
Regular price
$10.40
Sale price
$10.40
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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
Regular price
$10.40
Sale price
$10.40
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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
Regular price
$10.61
Sale price
$10.61
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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
Regular price
$10.61
Sale price
$10.61
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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
Regular price
$10.77
Sale price
$10.77
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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
Regular price
$10.77
Sale price
$10.77
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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
Regular price
$11.45
Sale price
$11.45
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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
Regular price
$11.45
Sale price
$11.45
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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
Regular price
$11.99
Sale price
$11.99
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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
Regular price
$11.99
Sale price
$11.99
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per 
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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
Regular price
$12.51
Sale price
$12.51
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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
Regular price
$12.51
Sale price
$12.51
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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

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!