Products Home / Actuators, Adjusters, & Transducers / Adjustment Screws / Hex Adjusters, 3/16"-100 FineHex Adjusters, 3/16"-100 Fine
- Hex Adjusters and Adjusters with Knobs
- Tolerances Better Than Class 3
- 0.01" Travel per Revolution
F19SSN1P
LN19100
F19SSK1
N100L5P
F19SC1
5/64"
Hex Socket
F19SS100
F19SS200
UFS075
UFS100
F19SSK1L
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| Selection Guide for Adjustment Screws |
|---|
| Imperial |
| 6-80 |
| 3/16"-100 |
| 3/16"-120 |
| 1/4"-80 |
| 1/4"-100 |
| 1/4"-100 Matched Adjuster/Bushing Pair |
| 1/4"-170 Matched Adjuster/Bushing Pair |
| 3/8"-100 |
| Metric |
| M2 x 0.20 |
| M2.5 × 0.20 |
| M3 × 0.20 |
| M3 × 0.25 |
| M4 x 0.25 |
| M6 × 0.25 |
| Differential Adjuster Screws |
Features
- 100 TPI Fine Adjustment
- Hex Adjusters Feature a 5/64" (2 mm) Hex Socket
- Removable Adjustment Knobs Available for Hex Adjusters
- Adjusters with Integrated Adjustment Knob
- Phosphor Bronze Sleeves, Threaded Bushings, Lock Nuts, and Locking Collars for Threading Integration
These 3/16"-100 adjuster screws are especially challenging to manufacture given that the thread depth (peak to valley) is just 0.006". We have developed a manufacturing process that meets the Class 3 thread tolerancing standard.
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, please 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. 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 follow carefully 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.
Drilling and Tapping
While we recommend using our fine adjusters with the appropriately matched threaded bushing (sold below), it is also possible to incorporate them directly into a part or material by creating a threaded hole. For the adjusters on this page, the diameter of the pilot bore should be 0.177" +0.002"/ -0.001". The corresponding imperial drill bit is size #16 (0.1770"). The hole can then be tapped with TAP316100. For fine pitch threads, it is especially important to tightly tolerance the pilot bore because of the shallow thread depth. For more information, see our taps and drill bit kit page.
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
| Posted Comments: | |
Greg George
(posted 2021-09-29 15:12:19.17) Hello. I'm checking to see if you have a left-hand version of F19SS200(screw) and also of F19SSN2P (nut). Thanks. YLohia
(posted 2021-12-22 02:34:51.0) Hello, custom items can be requested by emailing techsales@thorlabs.com or by clicking the "Request Quote" button above. We have reached out to you directly to discuss the feasibility of offering this. David Tiss
(posted 2021-04-02 18:20:57.607) Some sets are a little too loose or tight, what is the ideal vacuum grease for optimal movement? YLohia
(posted 2021-04-05 02:11:07.0) Thank you for your feedback. These adjusters and bushings are made to tight Class 3 standards. However, the feel for non-matched pairs will differ from unit to unit due to slight tolerancing differences. We tend to use Krytox LVP grease for vacuum applications. Jeremy Grigsby
(posted 2019-06-22 11:29:44.577) I want to use this for fine adjustment of an inspection fixture. I am wondering if there is enough room in this knob to tap a 10-32 hole to attach a swivel pad on a 10/32 screw. The 3/16-100 would be threaded into a base and the 10-32 would be a permanent mount to the knob. llamb
(posted 2019-06-25 10:51:54.0) Thank you for contacting Thorlabs. The F19SSK1L knob features a Ø0.152" access bore of 0.175" length for the clearance of a hex key. This can be seen more easily using the CAD models available for this part. You can use this bore to tap a #10-32 thread, as the minimum minor diameter for the thread is still larger than this bore. I have reached out to you directly as well to discuss your application further. belzzzebub
(posted 2018-07-11 23:18:18.253) So the drawing states 0.13" (3mm) ball size... 0.13" is 3,302mm and the cad-model seems to be something in between... so what is it? llamb
(posted 2018-07-12 09:39:54.0) Thank you for your feedback. The values were rounded in the support drawing. The ball tip is Ø0.125" or Ø3.175 mm in diameter. H.RITTLER
(posted 2016-03-16 08:23:35.813) CAD MODELS? besembeson
(posted 2016-03-17 09:46:01.0) Response from Bweh at Thorlabs USA: We have the CAD models on the website. I will contact you if you have any questions about these models. jlow
(posted 2012-08-27 17:00:00.0) Response from Jeremy at Thorlabs: These fine adjusters are already greased with Apiezon M grease. scholten
(posted 2012-08-25 19:59:58.0) Thanks for these adjusters, but it seems they are supplied without lubricant. What grease or other lubricant to you recommend? Your SG10 vacuum grease? Thanks Thorlabs
(posted 2010-10-08 17:24:23.0) Response from Javier at Thorlabs to w.nayland: Thank you very much for your feedback. I will share your comments with our mechanics department and contact you directly with more information. w.nayland
(posted 2010-09-23 12:54:35.0) I am having great difficulty using the adjusters with the 5/64 hex socket and think it would be an improvement if the adjuster were extended slightly to include a round hole lead in which is a tight clearance on the key.
With the suggested change fitting the key in the hexagon can be done in 2 stages.
1) fitting the key in the round hole so that it is concentric with the hexagon.
2) fiddling the key into the hexagon. Tyler
(posted 2008-07-30 16:48:35.0) A response from Tyler at Thorlabs to somansv: The hex adjusters are RoHS compliant while the bushings are RoHS exempt 6. This information is typically available on the "Documents and Drawings" tab or by clicking on the part number in the price box. Thank you for your interest in our products. somansv
(posted 2008-07-30 14:24:48.0) Is this material ROHS Compliant? |
Zoom
- Seven Lengths Available from 0.375" to 2"
- 5/64" (2 mm) Hex Key Compatible
- Max Load: 18 lbs (8 kg)
Our high precision 3/16"-100 Fine Hex Adjusters can be adjusted with a 5/64" (2 mm) hex key, 3/16"-100 removable adjustment knob (sold below), or HKTS-5/64 hex key adjuster knob (sold below). The F19SS series adjusters have a maximum axial load capacity of 18 lbs (8 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.
Drilling and Tapping
While we recommend using our fine adjusters with the appropriately matched threaded bushing (sold below), it is also possible to incorporate them directly into a part or material by creating a threaded hole. For the adjusters on this page, the diameter of the pilot bore should be 0.177" +0.002"/ -0.001". The corresponding imperial drill bit is size #16 (0.1770"). The hole can then be tapped with TAP316100. For fine pitch threads, it is especially important to tightly tolerance the pilot bore because of the shallow thread depth. For more information, see our taps and drill bit kit page.
Zoom- Two Lengths Available
- Max Load: 18 lbs (8 kg)
Our high precision 3/16"-100 Fine Adjustment Screws are equivalent to the adjusters sold above, but with a knob permanently attached to one end. The knob improves adjustment sensitivity. Our UFS series adjusters have a maximum axial load capacity of 18 lbs (8 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.
Zoom- Use with 3/16"-100 Hex Adjusters
- Clearance Hole Allows Access to Adjuster's Hex Socket
- Available in 2 Sizes
- Knurled Knob Increases Adjustment Sensitivity
The F19SSK1 and F19SSK1L Removable Adjustment Knobs thread onto our 3/16"-100 F19SS series hex adjusters to allow adjustment without the use of a hex key. This provides quick and easy adjustments for a broad range of applications. The adjuster knobs are available in two sizes: standard (Ø0.41") and large (Ø0.71").
Zoom- Ideal for Slip Fit
- Three Lengths Available
- Made from 510 Phosphor Bronze (Vacuum Rated for 10-6 Torr)
- Recommended Bore Diameter:
- N100: 0.2415" +0.0005"/-0.0000"
- F19: 0.2895" +0.0005"/-0.0000"
The N100B2P and F19SS series threaded bushings are designed for slip fit applications, as the 3/16"-100 threading tolerances are too tight for press fit. The recommended bore diameter for our N100 bushings is 0.2415" +0.0005"/-0.000", and for our F19 bushings is 0.2895" +0.0005/-0.0000". Each bushing is made of phosphor bronze in order to prevent damage to the fine adjusters. Phosphor bronze offers advantages like vacuum compatibility over brass. For vacuum applications, we recommend a thorough ultrasonic cleaning to remove any grease or particulates prior to use. To learn more about the use of fine adjustment screws and bushings in optomechanical systems, please see the Integration tab above.
Zoom- Material: 510 Phosphor Bronze (Vacuum Rated for 10-6 Torr)
- Installed Using the 7/16" Hex Locking Nut
- Adjuster Screws Can be Locked in Place with the Side-Located Setscrew
This 3/16"-100 threaded bushing is made from 510 Phosphor Bronze (vacuum rated for 10-6 torr) and includes a removable nut with a 7/16" hex. The sleeve can be mounted in a clearance hole, using the 7/16" hex nut to lock them into place. Adjusters installed in this bushing can be locked in place via a side-located setscrew. For vacuum applications, we recommend a thorough ultrasonic cleaning to remove any grease or particulates prior to use.
Zoom- Knurled Outside Diameter for Easy Tightening
- Material: 510 Phosphor Bronze
- Vacuum Compatible: 10-6 Torr
The LN19100 lock nut features a knurled outside diameter to make gripping the nut easier when loosening or tightening. The 0.15" (3.8 mm) thick lock nut is made from 510 Phosphor Bronze, which is vacuum rated for 10-6 Torr. Each nut features blind holes that allow a hex key to be used to help tighten the lock nut.
Zoom
Click to Enlarge
Two Collars Can be Locked Together to Create a Hard Stop
Click to Enlarge
A Single Locking Collar Can Lock an Adjuster in Position
- Extremely Compact Lock Nut: 0.05" (1.1 mm) Thick
- Use One Collar To Lock an Adjuster to a Bushing
- Use Two Collars to Create a Hard Stop on an Adjuster
- Sold in Packages of Five
- Install and Remove with the SPW401 Spanner Wrench, Sold Below
These locking collars are compact alternatives to the lock nuts sold above. They are only 0.05" (1.1 mm) thick and are constructed of 303 stainless steel. They are compatible with all of the 3/16"-100 adjusters sold on this page, as well as those used in our PY005 5-axis platform.
As shown in the photos to the right, they can be used to lock an adjuster in a desired position, or to create a hard stop at any position to prevent overdriving an adjuster. In addition to using two collars to create a hard stop, as shown in the photo to the far right, a single collar can be epoxied to an adjuster using our G14250 epoxy to create a permanent hard stop. We recommend the SPW401 Spanner Wrench, sold below, to install or remove these locking collars.
Zoom
- 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" Hex Key Adjuster Thumbscrews allow for quick adjustment of many 5/64" and 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. Contact Tech Support to order replacement hex key bits.
We offer hex key thumbscrews in sizes from 0.050" to 3/16" and 2 mm to 5 mm.
3/16"-100 Adjustment Screws