Features

100 TPI Fine Adjustment
Hex Adjusters Feature a 5/64" Hex Socket
Removable Adjustment Knobs Available for Hex Adjusters
Adjusters with Integrated Adjustment Knob
Bronze Sleeves, Threaded Bushings, and Lock Nuts for Threading Integration

The 3/16"-100 series 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 ensures tolerances that meet Class 3. A range of 3/16"-100 threaded components are available to help you incorporate these fine adjusters into your application. The fine adjustment screws come lubricated to ensure smooth mating into compatible components.

Integrating Fine Adjustment Screws Into Optomechanical Systems

When assembling, apply a small amount of the Loctite adhesive to both threaded bushings and the mounting plate and ensure a uniform distribution of the adhesive around the perimeter of the parts before assembly. After insertion, remove any excess adhesive from around the part.

Threaded Bushing Application

The assembly process begins by producing the appropriate 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.

As shown in Figure 1, the flange on the mating bushing is designed to support the axial load of the screw and bushing assembly.

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Posted Comments:

Poster: jlow

Posted Date: 2012-08-27 17:00:00.0

Response from Jeremy at Thorlabs: These fine adjusters are already greased with Apiezon M grease.

Poster: scholten

Posted Date: 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

Poster: Thorlabs

Posted Date: 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.

Poster: w.nayland

Posted Date: 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.

Poster: Tyler

Posted Date: 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.

Poster: somansv

Posted Date: 2008-07-30 14:24:48.0

Is this material ROHS Compliant?

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3/16"-100 Ultra-Fine Hex Adjusters

Features

Integrating Fine Adjustment Screws Into Optomechanical Systems