Products Home / Actuators, Adjusters, & Transducers / Adjustment Screws / 9/16"-100 Fine Hex Adjusters9/16"-100 Fine Hex Adjusters
- Adjuster Lengths Between 1" and 3"
- 0.01" Travel per Revolution
- Adjustment Knobs and Threaded Bushings
Also Available
F56USN1P
Ø0.6870" Bushing
LN56100
Lock Nut
3/16" Hex Socket
F56SSK1
Ø0.89" Removable Adjuster Knob
F56SS100
1.00" Long Hex Adjuster
F56SS300
3.00" Long Hex Adjuster
F56SS200
2.00" Long Hex Adjuster
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| Selection Guide for Adjustment Screws |
|---|
| Imperial |
| 6-80 |
| 6-120 |
| 3/16"-100 |
| 3/16"-120 |
| 1/4"-80 |
| 1/4"-100 |
| 1/4"-100 Matched Adjuster/Bushing Pairs |
| 1/4"-170 Matched Adjuster/Bushing Pairs |
| 3/8"-100 |
| 9/16"-100 |
| Metric |
| M2 x 0.20 |
| M2.5 x 0.20 |
| M3 x 0.20 |
| M3 x 0.25 |
| M4 x 0.25 |
| M6 x 0.25 |
| Differential Adjuster Screws |
Features
- 100 TPI Fine Adjustment
- Hex Adjusters Feature a 3/16" Hex Socket
- Removable Adjustment Knob (Available Separately) Allows for Adjustment without Hex Key
- Threaded Bushings and Lock Nuts for Adjuster Integration
Thorlabs offers 9/16"-100 hex adjusters that exceed class 3 standards. Each screw is individually tested with a master gauge set that ensures the inter-changeability of our adjuster screws and threaded bushings. We also provide 9/16"-100 threaded bushings and lock nuts to simplify the integration of fine adjusters in your application. Each adjuster comes lightly lubricated to ensure smooth mating into compatible components.
If you are incorporating any of these components into larger optomechanical systems, please ensure that the specifications for any mating parts you are manufacturing have the appropriate tolerances. For more details, see the Integration tab.
Integrating Fine Adjustment Screws Into Optomechanical Systems
The assembly process begins by producing the appropriately sized mating hole for the threaded bushing. The recommended bore diameter can be found with the product information for the bushing sold below. Given the close fit between the threaded bushing and the mating adjuster screw, we caution against using a press fit to assemble these products. For our own production needs, we use a permanent anaerobic adhesive that provides excellent long-term performance.
We recommend using Loctite Anaerobic Adhesive product number 680 or equivalent. In order to ensure maximum strength between the bonded parts, we strongly urge the user to carefully follow the instructions provided by Loctite, which specify the amount of clearance between the threaded bushing and the mounting plate. The most common source of failure is not allowing for the proper clearance between the parts being bonded, since this clearance provides for the proper volume of adhesive.
When assembling, apply a small amount of the Loctite adhesive to the threaded bushing only. Rotate the bushing as it is installed to ensure a uniform distribution of the adhesive. After insertion, remove any excess adhesive from around the part.
As shown in the figure to the right, the flange on the mating bushing is designed to support the axial load of the screw and bushing assembly.
OEM & Custom Precision Screws
Thorlabs manufactures custom and high volume OEM precision screws and bushings with various diameters, lengths, and threads. To inquire about custom or OEM precision screws, please contact Technical Support or use the "Contact Us" form to the right. A specialist will contact you within 24 hours or the next business day.
Precision Screw Capabilities
Thorlabs' in-house machine shop, located in Newton, NJ, gives us the ability to quickly produce large quantities of precision screws and bushings. We are equipped to manufacture screw diameters ranging from 2 mm to 20 mm with lengths up to 165 mm and a maximum thread pitch of 200 TPI. Our standard adjuster screw design has a hardened steel ball tip to provide a single point of contact; for other applications we are able to provide adjusters without the steel ball. Custom orders can be achieved on a case-by-case basis. For large orders of an item, Thorlabs passes on to the customer the cost savings associated with planned production of high volumes of that item. For more information on Thorlabs' discount pricing policy, click the "V" link to the right. We also offer a large variety of stock precision screws, which are available here.
Fast Turn-Around Times
Our experienced, highly skilled machinists are running our on-site Citizen Swiss Screw Machines 24 hours a day, allowing us to produce high-volume custom and OEM orders. Each machine is capable of running unattended, producing one screw every 30 to 120 seconds. This flexibility allows us to fulfill multiple orders at once without sacrificing quality.
High Quality
Thorlabs inspects all of our fabricated precision screws and bushings after the initial fabrication process and right before packaging. All inspections adhere to the ANSI AQL1.5 acceptable quality level, which states that if a certain percentage, based upon the amount of product in a certain lot, does not meet specification, then the entire lot is not sold. This ensures that all customers receive the highest quality product every time and that all items will be of equal performance.
Precision Screw Production
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Zoom
- Five Lengths Available from 1" to 3"
- 3/16" Hex Key Compatible
- Max Load: 75 lbs (34 kg)
- Material: DFARS-Certified Stainless Steel
- Traceable Material Certification Available (Must be Requested at Time of Purchase)
Our high-precision 9/16"-100 Fine Hex Adjusters can be adjusted with a 3/16" hex key or F56SSK1 removable adjustment knob (sold below). The F56SS series adjusters have a maximum load of 75 lbs (34 kg). The adjuster body is constructed of 303 stainless steel and comes pregreased to ensure smooth mating into compatible components. The ball tip is constructed using 440 stainless steel that is fixed onto the adjuster using epoxy.
These adjuster screws are designed to be used with 9/16"-100 threaded bushings, available below.
Zoom- Ideal for Slip Fit
- Material: 510 Phosphor Bronze (Vacuum Rated for 10-6 Torr)
- Recommended Bore Diameter: 0.6875" +0.0005"/-0.0000"
Our 9/16"-100 Threaded Bushings are commonly used in slip fit applications where fine adjusters are needed. Due to the tolerances of our fine adjusters, we discourage press fitting this bushing. The recommended bore diameter for our 9/16"-100 bushings is 0.6875" +0.0005"/-0.0000". To learn more about the use of fine adjustment screws and bushings in optomechanical systems, please see the Integration tab above.
Zoom- Knurled Outside Circumference for Easy Tightening
- Material: 510 Phosphor Bronze
- Vacuum Compatibility: 10-6 Torr
The LN56100 Lock Nut features a knurled outside circumference, which helps when tightening or loosening the nut. This lock nut is made from 510 Phosphor Bronze, which is vacuum rated for 10-6 Torr. Each nut features blind holes that allow a 3/16" hex key to be used to help tighten the lock nut.
Zoom- Use with 9/16"-100 Hex Adjusters
- Clearance Hole Allows Access to Hex Socket
- Knurled Knob Increases Adjustment Sensitivity
- Material: Anodized Aluminum
The F56SSK1 Removable Adjustment Knob is compatible with our 9/16"-100 hex adjusters sold above. The Ø0.89" knob enables quick and easy tweaking of an actuator without needing a hex key.
9/16"-100 Adjustment Screws