Description

Key Features

Stops Nail Strikes

The Simpson Strong-Tie PSPN58Z protecting shield plate covers utilities that pass through framing so nails are less likely to hit plumbing or electrical lines where damage usually happens.

Wide 5 x 8 Coverage

The 5 inch by 8 inch plate gives broad protection across top or bottom plate areas, which matters when the pipe or line sits close to the nailing path.

Code Recognized

PSPNZ protecting shield plate nail stoppers meet IRC, IBC, and International Plumbing Code requirements for the listed applications, so it is built for real inspection-driven work.

Overview

The Simpson Strong-Tie PSPN58Z Protecting Shield Plate Nail Stopper is a galvanized steel nail plate made to protect pipes and electrical lines where they pass through framing members. This is a protecting shield plate nail stopper designed for protecting plumbing and electrical runs from fastener damage in framed walls. Model Number: PSPN58Z. If you are roughing in plumbing or electrical and need a code-recognized way to shield vulnerable areas from nails or screws, this is the part doing that job.

The big reason this piece matters is simple: it gives you a physical barrier right where drywall, trim, or finish work can turn into a punctured pipe or damaged wire. The 5 inch width and 8 inch length provide broad coverage over the penetration area, which is especially useful when utilities pass through top plates or bottom plates. Instead of hoping everyone misses the line, you put steel in the way.

Simpson makes the PSPN58Z from 54 mil, 16 gauge steel and finishes it with a ZMAX coating. That matters if the plate is going into areas exposed to moisture, treated lumber, or conditions where extra corrosion resistance is worth paying attention to. It is a straightforward part, but the material and coating are what keep a simple plate from becoming a weak link over time.

The PSPNZ series is also built around practical installation. Product data notes installation with 8d common nails, prongs, or #10 x 1-1/2 inch Strong-Drive SD screws for wood applications, and Simpson also notes that #10 self-tapping screws may be used to attach PSPNZ to cold-formed steel framing when specified by the designer. If prongs need adjustment during install, they can be flattened with a hammer. That gives you flexibility across wood framing and certain cold-formed steel jobs.

On the code side, this is not just a generic hardware plate. The PSPN58Z protecting shield plate nail stopper is called out as meeting IRC, IBC, and International Plumbing Code requirements for the listed uses, with specific mention of top plate and bottom plate applications under the International Plumbing Code. For contractors and inspectors, that is the difference between a part that looks close enough and one that is actually intended for the application.

In day-to-day use, this product is best for plumbers, electricians, framers, remodelers, and general contractors working around rough-in penetrations. It is also a good fit for serious DIY work where the wall is open and you want to protect a line the right way before closing it up. There is nothing flashy here, and that is the point. The Simpson Strong-Tie PSPN58Z Protecting Shield Plate Nail Stopper solves a very specific jobsite problem with the right material, the right size, and code-backed use.

Protect Vulnerable Rough-Ins

This kind of plate earns its keep after the rough-in crew leaves. Once the wall gets covered, it helps keep nails and screws from finding the pipe or line sitting behind the framing.

• Designed to install over utilities passing through framing members
• Meets IRC, IBC, and International Plumbing Code requirements for listed uses

Built for Framing Conditions

The PSPNZ platform is not limited to one type of job. Installation guidance also covers cold-formed steel framing with #10 self-tapping screws when specified, which makes it useful on mixed-material projects.

• #10 screws are specified for installation
• #10 self-tapping screws may be used for attachment to cold-formed steel framing as determined by the designer

Simple Part, Important Details

With hardware like this, material and finish are the whole story. Thick enough to do the job and coated for corrosion resistance, it is made for long-term service instead of being a throwaway plate.

• 54 mil, 16 gauge steel construction
• ZMAX coating adds corrosion resistance for exterior and treated-wood applications

Key Specifications

Width (in.)	5 in.
Length (in.)	8 in.
Thickness (mil)	54 mil
Gauge	16 ga.
Material	Steel
Finish	ZMAX coating
Type	Protecting shield plate nail stopper
Package Quantity	1

Compatibility

Framing Material

Used over utilities passing through wood framing members and may also be attached to cold-formed steel framing with #10 self-tapping screws when specified by the designer.

Fasteners

Installation data references 8d common nails, prongs, or #10 x 1-1/2 in. Strong-Drive SD screws for wood applications, plus #10 screws for listed installs.

Code Applications

PSPN58Z is listed for top plate and bottom plate applications under the International Plumbing Code.

Built For

Plumbing Rough-In Electrical Rough-In Wood Framing Cold-Formed Steel Framing Remodeling General Contracting Code-Driven Repairs Wall Protection Work

Pro Tip

If you are fitting the plate around a rough-in that is already tight to the framing, flatten the prongs with a hammer as needed before final fastening. On cold-formed steel jobs, stick with #10 self-tapping screws only when the designer calls for that attachment method.

Warranty & Support

Limited lifetime warranty.

Tool Nut’s Take

Tool Nut’s Take

Cheap insurance for a very expensive mistake

The Simpson Strong-Tie PSPN58Z is the kind of part you install once and hope nobody ever notices, because if it does its job, you avoided a punctured pipe or damaged wire behind the wall.

• Who it’s for: Plumbers, electricians, framers, remodelers, and anyone closing up walls after rough-in work.
• Why it stands out: 16 gauge steel, ZMAX coating, broad 5 inch by 8 inch coverage, and code-recognized use make it more than a generic nail plate.
• Worth knowing: This is a single plate, not a bulk pack, and fastener choice matters depending on whether you are working in wood or cold-formed steel.

Common Questions

• What is the PSPN58Z used for? It is used to protect pipes and electrical lines that pass through framing members so nails or screws are less likely to pierce them.
• Can it be used with cold-formed steel framing? Yes. Simpson notes that #10 self-tapping screws may be used to attach PSPNZ to cold-formed steel framing when the quantity is determined by the designer.
• What is it made from? The PSPN58Z is made from 54 mil, 16 gauge steel with a ZMAX coating.
• Does it meet code requirements? Simpson states that PSPNZ protecting shield plate nail stoppers meet IRC, IBC, and International Plumbing Code requirements for the listed applications, and PSPN58Z is specifically listed for top and bottom plate applications under the International Plumbing Code.