Hardware fasteners for aluminium framing that promise reliable clamping in 40 Series T-slots, sourcing map T Slot Nuts and Bolts. They give installers and hobbyists confidence during assembly and reconfiguration. Are the M8 thread, 25mm length and included flange nuts the right fit for your frames and jigs?
⚡ At a Glance
- • Holding Strength: Carbon steel with zinc and nickel plating delivers high hardness, wear resistance and secure clamping
- • Best for: Assembly and clamping of 40 Series aluminium profiles, racks, frames and fixtures
- • Not ideal for: Applications requiring non-M8 threads or aluminium profiles other than the 40 Series
Includes 10 drop-in studs and 10 hexagon flange nuts. Screws are M8 by 25mm with 1.25mm pitch for 40 Series T-grooves.
Secure clamping - with M8 x 25mm drop-in bolts
M8 thread diameter and 25mm rod length combine with a hammer-head screw head that sits in the profile groove and locks when rotated 90 degrees. Nut and head dimensions are specified to give a predictable mechanical engagement.
Firm mechanical connection reduces slippage in framed assemblies and keeps components aligned during use.
Durable finish - thanks to zinc and nickel plating
Carbon steel fasteners receive zinc-plated and nickel-plated surfaces that increase hardness and resist wear, corrosion and oxidation over time. The layered finish improves surface longevity in workshop environments.
Corrosion-resistant surfaces help the fastenings last through repeated assembly and light industrial conditions.
Ready-to-use fastening set - with matched studs and flange nuts
Package contains 10 drop-in studs and 10 hexagon flange nuts, with screw head size 18 x 8 x 5.5mm and nut size 12.8 x 7mm documented for consistent fit. The paired components simplify parts selection.
Suitable for small projects and prototyping where having matched fastenings on hand speeds up assembly.
✨ The 4 Key Reasons for sourcing map T Slot Nuts and Bolts
- Standard M8 Thread - Works with widely available M8 hardware for easy replacements
- Compact hammer-head profile - Fits narrow T-grooves allowing tidy framing in tight spaces
- Measured head and nut sizes - Predictable fit reduces trial and error during assembly
- 10 paired pieces - Provides enough matched fastenings for multiple joints without extra sourcing
📋 Technical Details at a Glance
- Category: T-slot nuts and bolts
- Applicable Aluminium Profile: 40 Series
- Screw Thread Diameter: M8
- Screw Rod Length: 25mm (0.98")
- Pitch: 1.25mm (0.05")
❓ Frequently Asked Questions
Q: Are these compatible with 40 Series aluminium profiles?
A: Yes. The fastenings are specified for 40 Series T-grooves; confirm the profile or T-groove dimensions before fitting.
Q: What material and corrosion protection do they have?
A: Carbon steel construction with zinc-plated and nickel-plated finish, offering higher hardness, wear resistance and protection against oxidation.
Q: How are the bolts installed?
A: Place the hammer-head screw into the profile groove and rotate it 90 degrees to clamp, using the hexagon flange nuts to secure external fittings.
🏆 Our Verdict
Suited to builders, makers and maintenance teams working with 40 Series aluminium frameworks. The combination of standard M8 sizing, plated carbon steel and paired nuts delivers dependable, reusable fixings. While cost comparisons are sensible, the durable finish and standard thread form make these fastenings a sensible long-term choice for repeat assembly and modification.
