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SPIROL’s Press-N-Lok™ Pins are designed to permanently retain two plastic components together. The pins feature opposing raised barbs on each end that are angled backward, opposite the direction of insertion. As the pin is inserted, the plastic backfills into the area around the barbs, resulting in maximum resistance to axial force and providing a secure, tamper resistant assembly.
Advantages of Press-N-Lok™ Pins Include:
- Permanent / tamper resistant
- Simple & clean installation
- Lightweight & lead free
- Corrosion resistant
- Quicker assembly time and lower assembly equipment costs compared to screws and adhesives
- Hidden within the final assembly
SPIROL Press-N-Lok™ Pins are manufactured from lightweight, lead free, corrosion resistant aluminium and are available in diameters from 2 mm to 4 mm.
Complimentary Applications Engineering Support: SPIROL Engineers will review your application requirements and work with your design team to recommend the best fastening solution at the lowest total assembly cost.
THE PRESS-N-LOK™ PIN IS INSTALLED IN TWO STEPS:
Standard Offering
STANDARD MATERIAL
A – Aluminium
STANDARD FINISH
K – Plain
DIMENSIONAL DATA – METRIC
| SPIROL Part# |  2D/3D |
Nominal Diameter |
Pin Length “L” |
Pilot Diameter |
Barb Diameter |
Barb Count (per side) |
Chamfer Length “C” | Recommended Hole Size | |||
| Min. | Max. | Min. | Max. | Min. | Min. | Max. | |||||
| 282672 |  |
2 | 8 | 1.90 | 2.00 | 2.25 | 2.40 | 2 | 0.15 | 2.00 | 2.10 |
| 288078 | |
2 | 12 | 1.90 | 2.00 | 2.25 | 2.40 | 2 | 0.15 | 2.00 | 2.10 |
| 282673 | |
2 | 16 | 1.90 | 2.00 | 2.25 | 2.40 | 2 | 0.15 | 2.00 | 2.10 |
| 282674 | |
3 | 12 | 2.90 | 3.00 | 3.25 | 3.40 | 3 | 0.20 | 3.00 | 3.10 |
| 288320 | |
3 | 18 | 2.90 | 3.00 | 3.25 | 3.40 | 3 | 0.20 | 3.00 | 3.10 |
| 282675 | |
3 | 24 | 2.90 | 3.00 | 3.25 | 3.40 | 3 | 0.20 | 3.00 | 3.10 |
| 282676 | |
4 | 16 | 3.90 | 4.00 | 4.25 | 4.40 | 4 | 0.30 | 4.00 | 4.10 |
| 288322 | |
4 | 24 | 3.90 | 4.00 | 4.25 | 4.40 | 4 | 0.30 | 4.00 | 4.10 |
| 282677 | |
4 | 32 | 3.90 | 4.00 | 4.25 | 4.40 | 4 | 0.30 | 4.00 | 4.10 |
• Other lengths available upon request
• Available to order in nickel stainless steel
Additional Solid Pin Options
Application Success Stories
Retention Pin in Plastic Electric Vehicle Charging Handle
Customer Challenge:
A manufacturer of electric vehicle charging handles had been experiencing high scrap rates during assembly due to screws stripping the plastic host. They wanted to replace the screws with permanent, tamper resistant fasteners that also supported lean manufacturing.
SPIROL SOLUTION:
- SPIROL Engineering recommended replacing the screws with Press-N-Lok™ Pins that were specifically designed as retention pins for plastic enclosures.
- Press-N-Lok™ Pins have barbs that provide high retention in plastics. As the pins are pressed into the plastic, the barbs displace the plastic host material. After installation, the plastic backfills behind the barbs to lock the pins in place.
- The assembly time for the Press-N-Lok™ Pins was much quicker and the assembly equipment costs was lower compared to the screws previously used.
- SPIROL’s Press-N-Lok™ Pins simplified the assembly process, and eliminated scrap events associated with the installation of the screws.
Have a manufacturing issue you can't solve? Our engineering experts love a challenge. Recommending efficient solutions for your application requirements is what we do best. Give us a call or fill out the form below to connect with us!
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