Rittal SZ 4180.000 M8 sliding nut, silver, pack of 20

Rittal SZ 4180.000 sliding nuts are supplied in a pack of 20 and are designed for M8 threaded connections where a captive nut is required. Finished in silver, these sliding nuts (Schiebemutter) slide into profile channels or housings to provide a reliable threaded anchor point for bolts and other fasteners. They are intended for use in electrical enclosures, mounting rails and general industrial assembly tasks that utilise M8 threads.

Advantages

These sliding nuts offer a compact design that allows easy insertion and positioning inside T‑slots and profile channels. The silver finish provides corrosion resistance suitable for indoor industrial environments and electrical cabinets. Supplied in a pack of 20, they enable fast replacement or multiple assembly points without the need to source single items. Their design ensures a secure threaded engagement for M8 bolts, reducing assembly time compared with loose nuts that must be fitted from the outside.

Suitable for

• Mounting components inside electrical enclosures and control cabinets
• Fastening equipment to aluminium profile frames and mounting rails
• Industrial assembly tasks requiring captive M8 threaded connections
• Applications where components need adjustable or removable fastening points

When it may not be suitable

These sliding nuts are intended for M8 threaded fastenings; they are not suitable for use with other thread sizes. They are primarily designed for typical indoor and cabinet environments and may not be appropriate for highly corrosive or outdoor installations unless additional corrosion protection is applied.

Key specifications

• Thread size: M8 compatible
• Finish: silver
• Quantity: pack of 20 sliding nuts
• Type: captive/slide-in nut for profile channels and housings

How to use

Insert the sliding nut into the profile channel, orienting it so the threaded hole aligns with the desired fastening position. Slide the nut along the channel to the correct location and secure it by inserting an M8 bolt or screw through the component into the nut. Tighten the bolt to the appropriate torque for your application. For installations inside electrical enclosures, ensure the nut is positioned to maintain clearance for wiring and other components.

What to consider before purchase

• Verify that your fastener uses M8 threads and that the sliding nut profile fits your channel dimensions
• Consider the environment: indoor cabinet use vs. corrosive or outdoor conditions
• Confirm the required quantity; this product is supplied in packs of 20
• Check compatibility with the specific aluminium profile or rail system being used

Usage recommendations

For reliable assembly, use M8 bolts of appropriate grade and apply the manufacturer‑recommended torque. When using inside electrical enclosures, avoid over‑tightening to prevent deformation of profiles and ensure adequate clearance for cables. If the installation is exposed to moisture or corrosive atmospheres, consider additional corrosion protection or stainless steel alternatives.