Create an Account  |   Log In

View All »Matching Part Numbers


Your Shopping Cart is Empty
         

T-Nuts and Low-Profile Screws for 25 mm Rails


  • T-Nuts Fasten Rails to Other Mechanical Components
  • Low-Profile Screws Provide Added Clearance

SH25LP38

Low-Profile Channel Screws

Quick-Release T-Nut
8-32 (M4)

Drop-In T-Nut
8-32 (M4)

Low-Profile T-Nut
1/4"-20 (M6)

Drop-In T-Nut
1/4"-20 (M6)

Four T-Nuts
Available

Application
Idea

T-Nuts
Securely
Attach
Optomechanics
Using Rail
Channels

LPCEF

Fastener Kit: Quick-Release T-Nuts, Grub Screws, and Thumbscrews

Related Items


Please Wait
XE25 25 mm Construction Rail Accessories
Rails Cubes and Brackets Breadboard Mounting Rail Joiners
Rails Cubes and
Brackets
Breadboard
Mounting
Rail Joiners
Construction Tools  Nuts and Screws Enclosures Enclosure Accessories
Construction
Tools
T-Nuts and
Screws
Enclosures Enclosure
Accessories

Features

  • T-Nuts Fasten Rails to Other Optomechanics
  • Four T-Nut Choices (See Image Above)
  • Low-Profile Channel Screws with Smaller Footprint than Standard Cap Screws

Thorlabs' T-Nuts and Low-Profile Channel Screws are designed to link 25 mm rails to other optomechanical components.

T-Nuts
T-Nuts effectively add 8-32 (M4) or 1/4"-20 (M6) tapped holes to the rail sides, permitting a wide range of standard optomechanics to be fastened to the rails. Our T-Nuts are available in three styles—Quick-Release, Drop-In, and Low-Profile—which are detailed in the text below.

Low-Profile Channel Screws

Low-Profile Channel Screws in Corner Cube

Low-Profile Channel Screws
Low-Profile Channel Screws feature a shortened cap height and conserve space within a setup by allowing the optomechanical components that they attach to be more compact. For example, in our construction cubes, they allow several screws to be in close proximity, as shown to the left.

Thorlabs' accessories for assemblies made of 25 mm rails include corner cubes and brackets, T-Nuts, low-profile channel screws, breadboard mounting accessories, and rail joiners. In addition, we offer optical enclosures, enclosure accessories, and "do-it-yourself" tools like taps, tap guides, and drill guides for home-built XE25-based constructions.


Posted Comments:
No Comments Posted

Quick-Release T-Nuts for 25 mm Rails

Quick-Release T-Nut Insertion and Removal
XE25T4 in Rail Channel
Click for Details

Quick-Release T-Nut in Rail Channel
  • 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XE25T4 Support Documentation
XE25T4Self-Centering Quick-Release T-Nut, 8-32 Tapped Hole, Qty: 10
$25.43
Today
+1 Qty Docs Part Number - Metric Price Available
XE25T4/M Support Documentation
XE25T4/MSelf-Centering Quick-Release T-Nut, M4 Tapped Hole, Qty: 10
$25.43
Today

Drop-In T-Nuts for 25 mm Rails

Drop-In T-Nut Insertion and Removal
XE25T2 in Rail Channel
Click for Details

Drop-In T-Nut in Rail Channel
  • 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XE25T2 Support Documentation
XE25T2Drop-In T-Nut, 8-32 Tapped Hole, Qty: 10
$31.12
5-8 Days
XE25T1 Support Documentation
XE25T1Drop-In T-Nut, 1/4"-20 Tapped Hole, Qty: 10
$31.12
Today
+1 Qty Docs Part Number - Metric Price Available
XE25T2/M Support Documentation
XE25T2/MDrop-In T-Nut, M4 Tapped Hole, Qty: 10
$31.12
Today
XE25T1/M Support Documentation
XE25T1/MDrop-In T-Nut, M6 Tapped Hole, Qty: 10
$31.12
5-8 Days

Low-Profile T-Nuts for 25 mm Rails

Low-Profile T-Nut Insertion and Removal
XE25T2 in Rail Channel
Click for Details

Low-Profile T-Nut in Rail Channel
  • 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 even if the rail ends are blocked; the former can also be removed without access to the ends.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XE25T3 Support Documentation
XE25T3Low-Profile T-Nut, 1/4"-20 Tapped Hole, Qty: 10
$10.61
Today
+1 Qty Docs Part Number - Metric Price Available
XE25T3/M Support Documentation
XE25T3/MLow-Profile T-Nut, M6 Tapped Hole, Qty: 10
$10.61
Today

Fasteners for Laser Safety Fabric Panels

Laser Safety Curtain Panel
Click to Enlarge

View Imperial Product List
Item #QtyDescription
LPCE211Laser Safety Fabric Panel for 21" x 12" Enclosure Side
XE25C9121" x 15" x 12" (L x W x H) Enclosure with Black Hardboard Panels
MB18241Aluminum Breadboard, 18" x 24" x 1/2", 1/4"-20 Taps
LPCEF1Fastener Kit for Laser Safety Fabric Panels, 8-32 Threading
View Metric Product List
Item #QtyDescription
LPCE525/M1Laser Safety Fabric Panel for 525 x 300 mm Enclosure Side
XE25C9/M1525 mm x 375 mm x 300 mm (L x W x H) Enclosure with Black Hardboard Panels
MB4560/M1Aluminum Breadboard, 450 mm x 600 mm x 12.7 mm, M6 Taps
LPCEF/M1Fastener Kit for Laser Safety Fabric Panels, M4 Threading
LPCE21 Panel Attached to Optical Enclosure using LCPEF Fastener Kit. The thumbscrews can be easily removed in order to access the inside of the enclosure.
  • Attach Laser Safety Fabric Panels to 25 mm Rails
  • Each LPCEF(/M) Kit Includes:
    • Seven 8-32 (M4) Thumbscrews
    • Seven 8-32 (M4) T-Nuts
    • Seven 8-32 (M4) Grub Screws
  • Replacement 8-32 (M4) Thumbscrews Available [Item # LPCET(/M)]

The LPCEF(/M) fastener kit contains seven sets of thumbscrews, T-nuts, and grub screws. One fastener kit is enough to affix one laser safety fabric panel to the side of a compatible enclosure. Please see the manual for instructions.

The grub screws can be tightened using a 5/64" (2.0 mm) hex key or balldriver, while the thumbscrews do not have a hex socket.

Replacement thumbscrews for the fastener kit are also available in packs of 10.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
LPCEF Support Documentation
LPCEFNEW!Fastener Kit for Laser Safety Fabric Panels, 8-32 Threading
$42.00
Today
LPCET Support Documentation
LPCETNEW!8-32 Thumbscrews, Qty. 10
$14.60
Today
+1 Qty Docs Part Number - Metric Price Available
LPCEF/M Support Documentation
LPCEF/MNEW!Fastener Kit for Laser Safety Fabric Panels, M4 Threading
$42.00
Today
LPCET/M Support Documentation
LPCET/MNEW!M4 Thumbscrews, Qty. 10
$14.60
Today

Low-Profile Channel Screws

Low-Profile Channel Screw
Click to Enlarge

Low-Profile Screw in RM1G Construction Cube
Standard Cap Screw
Click to Enlarge

Standard Cap Screw in RM1G Construction Cube

Item # Threading Hex Head Height Length Material Quantity
SH25LP38 1/4"-20 1/8" 0.13" (3.2 mm) 0.34" (8.6 mm) Steel 100
SH6M10LP M6  4 mm 4 mm (0.16") 10 mm (0.39")

Our Low-Profile Channel Screws have a reduced cap head 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 and RM1S Construction Cubes.

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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
SH25LP38 Support Documentation
SH25LP381/4"-20 Low-Profile Channel Screws (100 Screws/Box)
$25.10
Today
+1 Qty Docs Part Number - Metric Price Available
SH6M10LP Support Documentation
SH6M10LPM6 x 1.0 Low-Profile Channel Screws (100 Screws/Box)
$25.10
Today
Log In  |   My Account  |   Contact Us  |   Careers  |   Privacy Policy  |   Home  |   FAQ  |   Site Index
Regional Websites: West Coast US | Europe | Asia | China | Japan
Copyright 1999-2019 Thorlabs, Inc.
Sales: 1-973-300-3000
Technical Support: 1-973-300-3000


High Quality Thorlabs Logo 1000px:Save this Image