GPN 318
The GPN 318 grip plugs are suitable for the protection of bore holes and internal threads. The innovative grip tab in a patented tab design enables extremely fast removal. Individual sizes in the range protect several thread sizes and flexible ribs accommodate larger tolerances.
- Grip plugs for internal protection
- Two sustainable variants made from post-consumer recyclate available
- Description
Description
Advantages



GPN 318 Singapore
The GPN 318 protective plug from Poppelmann KAPSTO is an industrial-grade bore protector that shields internal threads, pipe interiors, and precision bores from dust, chemicals, and mechanical wear during production and transport. Designed by Poppelmann KAPSTO, the GPN 318 incorporates a secure-fit profile that resists dislodging under vibration, manufactured from chemically resistant polyethylene suitable for demanding factory and warehouse environments. This protective plug supports critical applications in the flow control, heat transfer, and industrial coating industries in Singapore where bore protection safeguards equipment investment and system performance. Phil Industries is the authorised Poppelmann KAPSTO distributor in Singapore, delivering fast response times and professional support for all protective plug requirements. Browse our complete Poppelmann KAPSTO catalogue or call +65 6555 1745 for priority protective plug orders.








