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1/4"-80 Adjustment

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1/4"-80 Fine Hex Adjusters




  • Tolerances Better Than a Class 3 Fit
  • Lengths:3/8" - 4"
  • Fabricated from 303 Stainless Steel

Thorlabs has developed a set of specifications that exceed the industry class 3 standard by as much as 30%. All of our fine hex adjuster screws are made to these extremely tight tolerances. Each screw is individually tested with a master gauge set that ensures the inter-changeability of our adjuster screws and threaded sleeves. The fine adjustment screws come lubricated to ensure smooth mating into compatible components..


1/4"-80 Fine Hex Adjusters

Our high precision 1/4"-80 Fine Hex Adjusters can be adjusted with a 5/64" hex key, 1/4"-80 removable adjustment knobs (sold below) or HKTS-5/64 hex key knob . The F25SS series adjusters have a maximum load of 15 lbs (6.8 kg).

 

1/4"-80 Fine Adjusters with Knob

Our high precision 1/4"-80 Fine Adjustment Screws are a convenient drop-in alternative for our F25SS-series hex adjusters. The non-slip knurled delrin knob improves adjustment sensitivity. Our FAS series adjusters have a maximum load of 15 lbs (6.8 kg).

 

1/4"-80 Threaded Bushings


* Material: 510 Phosphor Bronze (Vacuum Rated for 10-6 Torr)
* Recommended Bore Diameter: 0.340 - 0.341"
Our 1/4"-80 threaded phosphor bronze bushings are commonly used in slip fit applications where fine adjusters are needed. The recommended bore diameter for our 1/4"-80 bushings is 0.340 - 0.341". The longer bushing (F25SSN1P) allows for increased stability, while the shorter bushing (F25SSN2P) can be used when space is a constraint. The 510 Phosphor Bronze material is also vacuum compatible; prior to use in vacuum applications, we recommend a thorough ultrasonic cleaning to remove any grease or particulates. Due to the tolerances of our fine adjusters, we discourage press fitting these bushings.

 

1/4"-80 Locking-Style Sleeves

These convenient sleeves are made from 510 Phosphor Bronze (vacuum rated for 10-6 torr) and are shipped with a removable nut. They are internally 1/4"-80 threaded and externally 3/8"-40 threaded. These sleeves can be mounted in a clearance hole, then the nut can be tightened down to hold the sleeve in place. These sleeves can then be used with a 1/4"-80 fine adjuster for fine adjustment in a variety of applications where threaded bushings are not suitable. For vacuum applications, we recommend a thorough ultrasonic cleaning to remove any grease or particulates prior to use.

 

Hex Adjusters, 1/4"-80 Bronze Locking Nut

* Compatible with Any Thorlabs 1/4"-80 Adjusters
* Minimal Beam Shift When Locking Mirror Mount
* Make Any Mount with 1/4"-80 Adjusters Lockable

 

1/4"-80 Removable Adjustment Knob

  • Use with 1/4"-80 Adjusters
  • Clearance Hole for 5/64 Hex Key
  • Available in 2 Sizes (See Table on Right)

 

Our F25SSK1 and F25SSK1L removable adjustment knobs thread onto our 1/4"-80 F25SS series hex adjusters, which can be found on our KM and KS series kinematic mounts, and allow a user to use the adjuster without a hex key. This provides quick and easy adjustments for a broad range of applications. We offer two sizes of adjustment knobs. Our standard size (F25SSK1) has a 0.58" diameter, while our larger size (F25SSK1L) has a 0.83" diameter.

Item #F25SSK1F25SSK1L
Knob Diameter 0.58" 0.83"

 

1/4"-80 Removable Color-Coded Adjustment Knobs

* Allows for Easy Identification of Certain Mounts in a Setup
* Available in 8 Different Colors
* Use with 1/4"-80 Adjusters
* Clearance Hole for 5/64 Hex Key

These color-coded knobs thread onto the 1/4"-80 F25SS series hex adjusters (found on our KM and KS series kinematic mounts) and allow for the use of an adjuster without a hex key. This provides quick and easy adjustments for a broad range of applications. These knobs are interchangeable, and the variety of anodized colors available allows the user to easily tag and identify certain mounts in the setup. They are available in packages of 10 knobs, except for the F25SSK1-MULTI, which is a package of 16 (2 of each color).

 

5/64" and 2 mm Hex Key Adjusters

  • For Convenient Adjustment of 5/64" and 2 mm Hex-Driven Actuators
  • Red Anodized Adjustment Knob with Engraved Hex Size
  • Replaceable Hex Tip
  • Sold in Packages of 4

These 5/64" and 2 mm Hex Key Adjuster Thumbscrews allow for quick adjustment of many 5/64" (2 mm) hex-driven actuators (or standard actuators with the knobs removed). These temporary knobs can be left in the screw's hex socket between adjustments for convenience (see photo to the right). An 8-32 setscrew (5/64" hex) secures the replaceable hex bit, which can be reversed if the tip is stripped.

We offer hex key thumbscrews in sizes from 0.050" to 3/16" and 2 mm to 5 mm.

 

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
Egypt Mobile  +2 0120 7577664
KSA Mobile     +966 545 991188
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