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Low-Profile Screws and Nuts

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Low-Profile Channel Screws and T-Nuts




  • Low-Profile Channel Screws Feature Reduced Cap Height
  • Spring-Loaded Thumbscrews
  • T-Nuts Accept 8-32, 1/4"-20, or M6-Threaded Optomechanics

Our Low-Profile Channel Screws and T-Nuts are designed for our 25 mm and 95 mm optical rail systems, but are also useful in applications where space is at a premium.


Low-Profile Channel Screws

 

  • Sold in Boxes of 100 Screws
  • SH25LP38: 1/4"-20 Threading, 1/8" Hex Head
  • SH6M10LP: M6 Threading, 4 mm Hex Head

Our Low-Profile Channel Screws have a reduced cap height relative to standard screws, permitting them to be used in tight spaces. In particular, they are recommended when neighboring screws are at a right angle and in close proximity, as in our XE25W3 Corner Cube or RM1G Construction Cube.

Shown to the right are a standard cap screw and a low-profile channel screw installed in an RM1G cube. The low-profile screw's shortened cap height prevents neighboring screws from interfering with each other.

 

Quick-Release T-Nuts for 25 mm Rails

 

  • Can Be Inserted and Removed from Any Exposed Portion of a Rail Channel Without Accessing the Ends as Shown in the Animation to the Right
  • Drops into Position and Locks by Rotating
  • More Surface Engagement than Drop-In and Low-Profile T-Nuts
  • 8-32 (M4) Tapped Hole for Mounting

The XE25T4(/M) Quick-Release T-Nut is our most versatile option for mounting mechanics to 25 mm rails. Its thin width profile allows it to be inserted into an exposed rail channel. After being inserted, a clockwise rotation by 90° prevents it from being removed again. Once rotated, screwing in a mechanical part draws the T-Nut away from the rail's center axis, eventually forcing the T-Nut and rail channel to engage. The protruding edge of the 8-32 (M4) tapped hole centers the T-Nut within the rail channel, ensuring even engagement on both sides.

To remove the Quick-Release T-Nut, simply remove any attached mechanical parts and rotate the T-Nut counterclockwise.

 

Drop-In T-Nuts for 25 mm Rails

 

  • Can Be Dropped into Any Exposed Portion of a Rail Channel Without Accessing the Ends
  • Removal Requires Access to the Rail Ends
  • 8-32 (M4) Tapped Hole or 1/4"-20 (M6) Tapped Hole for Mounting

Drop-In T-Nuts can be dropped in along any point of an exposed rail channel, making them easy to install even if the rail ends are blocked. They are available with either an 8-32 (M4) tapped hole [Item # XE25T2(/M)] or 1/4"-20 (M6) tapped hole [Item # XE25T1(/M)].

Although these T-Nuts can be easily inserted anywhere along the rail, access to the end of the rail is necessary for removal. This procedure is shown in the animation to the right. In contrast, our Quick-Release T-Nuts, shown above, offer the added flexibility of being able to be removed when the rail ends are obstructed.

 

Low-Profile T-Nuts for 25 mm Rails

 

  • Can Only Be Inserted and Removed from the End of a Rail
  • 1/4"-20 (M6) Tapped Hole for Mounting
  • Economical Alternative to Drop-In and Quick-Release T-Nuts

The XE25T3(/M) Low-Profile T-Nut can be used when there is access to the rail end, which allows the T-Nut to slip into place. Since installation (and removal) requires the rail end to be unobstructed, as shown in the animation to the right, this T-Nut usually needs to be positioned before an XE25-based mechanical construction is completed.

Our Quick-Release and Drop-In T-Nuts, shown above, can be inserted and removed even if the rail ends are blocked.

 

Low-Profile T-Nuts for 95 mm Rails

 

  • Can Only be Inserted and Removed from the End of a Rail
  • M6 Tapped Hole for Mounting

The XT95N6 Low-Profile T-Nut slips into the T-Slots along the rail side. Since installation (and removal) requires the rail end to be unobstructed, this T-Nut usually needs to be positioned before a 95 mm rail assembly is completed. In contrast, the Drop-In T-Nut shown below can be installed and removed even if the rail ends are blocked.

 

Drop-In T-Nuts for 95 mm Rails

 

  • Can be Inserted and Removed from Any Exposed Portion of a T-Slot Without Access to the Rail Ends
  • M4-Tapped Hole for Mounting

The XT95N4 Drop-In T-Nut has a thin width profile that allows it to be inserted into an exposed T-Slot. After being inserted, a clockwise rotation by 90° prevents it from being removed again. The protruding edge of the M4-tapped hole helps to center the T-Nut within the T-Slot.

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

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