TP-15 Threaded Plastic Spacer: Specifications, Selection and Applications
Detailed guide to TP-15 threaded plastic spacer specifications, selection tips, installation examples and South African sourcing notes - for makers and engineers.

Key specs
TP-15 typically means a 15 mm plastic threaded spacer, often in M3 or M2.5 thread sizes.
Selection tips
Match thread, length and temperature rating; use washers to reduce cracking risk.
Local procurement
Check Communica stock, branch pickup and VAT quoting for South African projects.
Overview: What is a TP-15 threaded plastic spacer?
The TP-15 spacer threaded plastic is a common nylon (or similar thermoplastic) threaded standoff used to separate PCBs and components, provide insulation and create reliable mechanical joins where low weight and electrical isolation are required. This guide covers typical specifications for TP-15 spacer threaded plastic, how to read datasheets, selection criteria for South African projects, and practical installation tips for makers, students and small-scale productions.
Typical physical and mechanical specifications
- Material: commonly nylon 6/6, polyamide or other engineering plastics - lightweight and electrically insulating.
- Thread size: often M3 or M2.5 for electronics; TP-15 usually references a 15 mm length rather than thread form.
- Length and overall dimensions: nominal 15 mm body length with specified head or shoulder geometry.
- Finish and colour: natural white/black; can be unplated and non-conductive.
- Temperature resistance: typical continuous use up to ~80°C (material-dependent). Verify on the product datasheet.
Reading a TP-15 spacer threaded plastic datasheet
Datasheets vary by manufacturer. Important fields to confirm include thread pitch (e.g., M3 x 0.5), nominal length (15 mm), head type (hex, round, or shoulder), tensile/compressive strength, and operating temperature. For procurement in South Africa, check stock notes and lead times on the product page and whether VAT invoices and account quotes are available for institutional purchases.
Specification comparison (example)
| Parameter | TP-15 Typical | Comments |
|---|---|---|
| Material | Nylon (PA66) / plastic | Non-conductive; check chemical compatibility. |
| Thread | M3 or M2.5 | Match to PCB inserts and screw selection. |
| Length | 15 mm body | Measure from mating face to face. |
| Max temp | ~80°C (material dep.) | Confirm if used near power components. |
Tip: If you need a metal alternative for higher temperature or mechanical strength, compare the TP-15 plastic to metal standoffs in the same length and thread size before finalising your bill of materials.
Why TP-15 threaded plastic is popular for electronics
Plastic threaded spacers provide electrical insulation, reduce weight, and are cost-effective for prototypes, student projects and many production runs. They are commonly used between stacked PCBs, between PCB and enclosure, and as mounting points for sensors or small modules. For sourcing options and related parts browse Communica's collections of mechanical hardware and enclosures at where-to-find-pcb-connectors-in-south-africa.
Compatibility and accessory checks
- Match screw length: ensure the screw does not bottom out or protrude into sensitive PCB areas.
- PCB hole sizing: verify hole diameter and plated-through thickness when using threaded inserts.
- Use washers where screws seat into plastic heads to avoid cracking under torque.
For a broader view of products that pair well with spacers, check Communica's complete product index at buy-pcb-connectors-tp-15-online.
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Selection criteria: choosing the right TP-15 spacer threaded plastic
When selecting a TP-15 spacer threaded plastic for a specific South African use case, assess mechanical load, electrical isolation needs, thermal environment, and availability. Makers and engineering students should prioritise ease of sourcing, low-cost options for prototyping, and predictable lead times for classroom projects or lab builds.
Mechanical calculations and practical examples
While plastic spacers are not structural members, basic checks help avoid failures. Use simple compressive load checks and ensure torque limits are observed:
- Estimate compressive load: for light PCBs use a safety margin of 5-10 N per spacer. For heavier assemblies, consult material datasheet.
- Torque guidance: avoid over-tightening. Typical M3 into nylon spacers should be hand-tightened or tightened to low torque (manufacturer data required for exact Nm values).
Wiring diagram / mounting ASCII example
Top PCB ------- o o <-- M3 screws through PCB into TP-15 spacer | | [TP15] | | ------- <-- Bottom PCB or chassis
Troubleshooting common issues
- Cracking when tightening: use a larger head screw or add a metal washer to distribute load.
- Thread stripping: replace with a metal standoff or reduce torque; consider a self-tapping screw designed for plastics.
- Thermal softening: relocate heat sources or use a higher temperature material if operating near continuous-use maxima.
Local sourcing, lead times and procurement notes
Communica stocks a wide range of mechanical hardware, spacers and standoffs suited for South African makers, academic labs and procurement teams. Check branch collection or stock status before planning build schedules; you can verify stock and branch pickup options at Branches & Trading Hours. For bulk orders or quotes, use account quotations and VAT invoicing where available - see company background at About Us.
Practical buying checklist (for TP-15 threaded plastic)
- Confirm thread size and screw compatibility.
- Confirm nominal length (15 mm) and head style.
- Check material temperature rating and chemical resistance.
- Verify stock availability and expected lead time in ZAR quoting for institutional purchases.
If you want to browse compatible parts and suppliers by brand, Communica's shop-by-brand index is a useful way to compare mechanical hardware brands and maker-friendly parts: Shop by Brand. For related categories such as enclosures, fasteners and hardware, explore the product collections at Collections. For direct product purchase options, consider buy-pcb-connectors-tp-15-online.
Sources
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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