- Products
- Green Frame
- GF-N Ø 28 mm
- Profiles
- GF-N profile with C10 slot
GF-N profile with C10 slot
https://leanproducts.eu/shop/gf-n-profile-with-c10-slot-302 https://leanproducts.eu/web/image/product.template/302/image_1920?unique=f20c9d2Green Frame Ø 28 mm profile with 10 mm slot for T-nuts: fix plate castors, panels, hooks and rollers where needed. Typical base of tube trolleys. 0.68 kg/m, 4000 mm bar or cut to length.
Green Frame · GF-N Ø 28 profiles
GF-N profile with C10 slot: Ø 28 mm tube with slot for T-nuts, castors and panels
The Green Frame profile with a 10 mm slot on one side: insert a T-nut and use a screw to fix plate castors, panels, brackets, hooks and rollers wherever you want. The round side connects with GF-N outer connectors. It is the typical profile for the base of tube trolleys.
Why choose it
Fixings wherever you want
With the T-nut in the slot you fit castors, brackets and panels at any point, without drilling the tube.
Designed for trolleys
Two side-by-side slotted profiles carry the plate castors with four T-nuts and the foot brake.
The slot acts as a guide
Slot rollers run in the slot: slides and sliders move along the profile.
Still a Green Frame tube
The round side takes GF-N outer connectors: you can fit it into any Ø 28 frame.
Choose it if…
- You need to fix plate castors under a trolley.
- You want to mount panels, brackets, hooks or sensors in an adjustable position.
- You need a guide for rollers or slides along the tube.
Choose another solution if…
- The cross member does not need to carry accessories: the standard tube is lighter (0.37 kg/m): GF-N profile →
- You need a slot on a Ø 43 tube for more heavily loaded structures: GF-G profile with C10 slot →
- You want a small slot on a light Ø 19 tube: GF-S profile with C6 slot →
Not sure which one to choose? Use the Green Frame quick guide →

Application example
The slotted profile works where the structure has to carry something fixed to it:
- Trolley bases: plate castors and foot brake on two profiles side by side
- Panels and guards: sheets and brackets fixed with T-nuts
- Slides and sliders: slot rollers running along the profile
What you mount in the slot
Hook for C10 slot
It slides into the slot and locks with a twist: for hanging tools and signs.
View product →For screw fixings in the slot, T-nuts are used: you will find the type and quantity in the component list we prepare for you.
How to assemble it
Three things to know before ordering:
Orient the slot
With the slot on the side the profile is stiffer: over 1000 mm it takes 334 N at mid-span, against 200 N with the slot facing down.
Outer connectors
It connects with GF-N outer connectors, which clamp onto the round side of the profile.
Plate castors
They go on two slotted profiles side by side, fixed with four T-nuts; from Ø 100 mm upwards with a spring washer.
The cross-section is 28 × 24 mm: the slotted side is 4 mm lower than a standard tube. We take this into account in the project dimensions.
The LeanProducts service
From drawing to finished structure, with a single point of contact:
Design and load calculation
We start from your sketch or dimensions: we choose profiles and connectors and check spans, joints and loads.
Cut to length
We cut the profiles in our workshop to the lengths in the design, ready to assemble.
Kit or assembled structure
You receive the kit with the cut parts and the list of components, or the structure already assembled.
Spare parts and modifications
When the process changes we supply components and new cuts to modify or extend the structure.
Send us a sketch, a photo or the overall dimensions: we will reply with codes, quantities and cut lengths.
Technical data

| Specification | Value |
|---|---|
| Part number | GFF-004 |
| Series | GF-N, Ø 28 mm |
| Cross-section | 28 × 24 mm, round part Ø 25.4 mm |
| Slot | Width 10 mm, for T-nuts |
| Length | 4000 mm bar or cut to length |
| Weight | 0.68 kg/m |
| Material and finish | Anodised extruded aluminium |
| Moment of inertia | Ix = 1.19 × 10⁴ mm⁴ · Iy = 1.99 × 10⁴ mm⁴ |
| Section modulus | Zx = 0.96 × 10³ mm³ · Zy = 1.42 × 10³ mm³ |
| Load at centre, 1000 mm span | 200 N with the slot underneath, 334 N with the slot on the side (deflection 5/1000) |
| Suitable connectors | GF-N outer connectors |
| End caps | Reinforced inner end cap GFA-413, outer end cap GFA-401 |
Loads concentrated at the centre of a tube fixed at both ends with connectors, span measured between the uprights: in a structure, joints and supports also count, and we carry out the full check on the design.
Not sure which profile to use?
Send us a sketch of the structure and the weight it has to support: we will tell you the profiles, connectors and cut lengths.
Specifications
| Length | 4000 |
| Weight | 0.68 kg/m |
| Material | Anodised extruded aluminium |
| Tags | |
|---|---|
| Tags |
SUS
|
Slide a T-nut into the slot, position the component and tighten the screw: you can move it along the profile whenever you like. This is how you mount castors, brackets, panels, sensors and hooks without drilling the tube.
Two slotted profiles are placed side by side under the base and the castor plate is fixed with four T-nuts. For castors from Ø 100 mm upwards, add the spring washer. The foot brake is mounted on the same profiles.
On the side the profile is stiffer: over a 1000 mm span it takes 334 N at mid-span against 200 N with the slot underneath, always with 5 mm of deflection. Under trolley bases the slot faces down, because that is where you fix the castors.
GF-N external connectors, which clamp onto the round side of the profile. For the end there is the reinforced inner plug GFA-413, or the external plug GFA-401.
Yes. Slot rollers run in the slot: this way you build slides, sliders and small carriages that move along the profile. We will recommend the roller kit suited to the load.
The slotted profile is 24 mm high on the slot side instead of 28, weighs 0.68 kg/m instead of 0.37 and is stiffer with the slot on the side. In exchange for the slot fixings, it connects with GF-N external connectors.
The standard GF-N profile is suitable for most uprights and cross members. If a cross member is long or loaded use the GF-N W mounted on edge (about 10 times stiffer), or the T (about 1.5 times) or the Hard (about 1.7 times, also for joints that take impacts), which have the same diameter. To fix plate castors, panels or rollers with T-nuts choose the profile with C10 slot; F35 and F50 have a flat flange for labels, small parts holders and supports. The sliding profile has a smooth surface for sliding parts and boxes, the round roller profile becomes a roller with the pin connectors, LS and LS with S slot carry a linear slide and the linear guide profile is the track for the linear rollers.
The GF-N Ø 28 is the standard for workstations, flow racks and trolleys. The GF-S Ø 19 weighs about half as much (0.20 kg/m versus 0.37) and is for light frames, dividers, guards and small mechanisms. The GF-G Ø 43 is for uprights and cross members that have to carry a lot: over a 1000 mm span it supports 851 N at the centre versus 195 N for the GF-N, for the same deflection. It is often worth mixing them, for example GF-G uprights and GF-N cross members joined by mixed connectors.

