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NS/PSPNZ Nail Stoppers


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Nail stoppers help prevent nails from piercing pipes and electrical lines. Installed over utilities that pass through framing members.

PSPN516Z and PSPN58Z protecting shield plate nail stoppers meet IRC, IBC and the International Plumbing Code. PSPN516Z meets structural and protection requirements with one strap.


  • NS — 14 ga.; PSPNZ — 14 ga.


  • Galvanized; PSPN — ZMAX® coating. See Corrosion Information


  • PSPN516Z — 0.162" x 3 1/2" nails (see table notes).
  • Other models — 0.131" x 2 1/2" nails or prongs. For more information refer to flier Code Compliant Repair and Protection Guide (F-REPRPROTECT).

Related Literature

Product Information Tables

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

    Many of these products are approved for installation with Strong-Drive® SD Connector screws.

NS/PSPNZ Nail Stoppers Product Table
  1. PSPN516Z allowable loads are as follows: Sill plate installation — (12) 0.162" x 3 1/2" nails achieves 1,320 lb. for DF/SP and 1,145 lb. for SPF/HF. Double top plates installation — (16) 0.162" x 3 1/2" nails achieves 1,760 lb. for DF/SP and 1,530 lb. for SPF/HF (IRC) and (24) 0.162" x 3 1/2" nails achieves 2,640 lb. for DF/SP and 2,290 lb. for SPF/HF (IBC).
  2. To meet the prescriptive IRC requirement, 0.135" x 3 1/2" nails may be used.

Code Reports & Compliance