When a prototype, classroom build or maintenance job stalls because the right screw, spacer or rivet is missing, delays cost time and momentum. Communica keeps commonly used fasteners and hardware in local stock so South African makers, tertiary labs and procurement teams can finish projects this week - not next month. Our selection is focused on practical utility: metric and imperial bolts, machine screws, self-tappers, hex standoffs, nylon spacers, washers, rivets and threaded inserts suited to electronics enclosures, PCB mounting and general fabrication.
Why buy fasteners from Communica?
- Local stock across Samrand, Pretoria CBD and Cape Town for branch collection - check availability before you travel and avoid delays: Branches & Trading Hours.
- Project-ready kits and accessory bundles (screws + washers + nylon standoffs) to save kit assembly time and ensure compatibility with common enclosures and development boards.
- VAT invoices and account quotes for institutions and procurement teams - request a quotation to include on purchase orders or budgets.
Specification snapshot: choose the right fastener
Select by thread, head type, length and material. Below is a compact comparison of common choices and their typical electronics uses.
| Fastener | Typical Size | Material | Common Use |
|---|---|---|---|
| Machine screw (pan/slotted) | M2, M2.5, M3, M4 | Steel / Stainless | PCB mounting, standoffs |
| Self-tapping screw | #4 - #8 / 3.5mm - 4.8mm | Zinc plated steel | Plastic enclosures, sheet metal |
| Hex standoff / spacer | M2.5, M3, M4 | Brass / Aluminium / Nylon | Board separation, insulating mounts |
| Blind rivet | 2.4mm - 4.8mm | Aluminium / Steel | Permanent panel joins |
Compatibility & accessory guidance
Match screw head type to driver access (Phillips vs Torx), and pick washer types (flat vs spring) for clamping integrity. For mounting development boards like Raspberry Pi or Arduino, use M2.5 or M3 hex standoffs and machine screws - our kits include matching nylon washers to prevent shorts. Explore related components and recommended pack sizes on the Collections page: Shop by Category.
Quick selection checklist
- Measure thread pitch or bring a sample to a branch for a match.
- Choose corrosion-resistant finish (stainless or zinc) for outdoor enclosures.
- Use nylon standoffs for insulating PCBs; brass for stronger mechanical joints.
Need inspiration or a SKU list for a lab or classroom? Our About Us page explains our history serving education and makers and helps you understand our stock philosophy: About Communica.
