Supply nail guns and powder-actuated tools for fastening to wood, steel and concrete.

Metal washer, 8 holes, RC-8F Bossong
Key features
- MaterialGalvanised steel
- External diameter (mm)70
- Hole configuration8 through-holes
What it is
Metal washer, 8 holes, RC-8F Bossong. Key specifications: material Galvanised steel, external diameter (mm) 70, hole configuration 8 through-holes.
A washer is a perforated disc placed under the nut or screw head to spread the load, prevent loosening or insulate the fixing.
What it is for
Used for powder-actuated fastening into concrete and steel and for thermal insulation of walls, roofs and pipework.
How to use it
Choose an inner diameter matching the screw or threaded rod and a compatible material (zinc-plated, stainless steel, plastic). Place flat washers and penny washers under the nut to avoid damaging the substrate and to spread the pressure; place the spring washer under the nut, where it is flattened on tightening to resist vibration loosening. Use seismic washers only with the anchor they are certified for.
Where it is used
- Commercial construction
- Industrial construction
- Residential construction
Technical data
- Material: Galvanised steel
- External diameter (mm): 70
- Hole configuration: 8 through-holes
Who it is for
Designed for formwork carpenters, insulation installers and waterproofing specialists.
Related products
- Metal domed washer RB Bossong
- Conical washer for wood Bossong
- Class 8 nut for construction Bossong — from the category Hex Nuts
- Threaded rod with nut and washer, 8.8, Bossong — from the category Threaded Rods
- Spring cotter pin with double eye, white zinc-plated, Unifix — from the category Bolts and Metric Screws
- Browse the whole category: Flat Washers
Before you order
In your request, please state the diameter and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 3
| Material | Galvanised steel |
|---|---|
| External diameter (mm) | 70 |
| Hole configuration | 8 through-holes |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Fire staples or nails to fasten wood, boards, insulation and fabrics.
Clad external walls to reduce heat loss and heating consumption.



