Description

Key Features

Corrosion-Resistant Build

Type 302 stainless steel helps the screw hold up in exposed storm-panel applications where rust resistance matters. That is the part you care about if these are going on and off season after season.

Complete Install Kit

You get the storm-panel screws, washered wing nuts, plastic caps, a hex-driver bit, and a carbide-tipped drill bit. Less hunting for parts means faster setup when you are getting a property ready.

Simpson Strong-Tie SPS25344-KT Storm-Panel Screw Kit

This kit is built specifically for attaching storm panels to wood, concrete, and masonry. It is a purpose-built fastening solution, not a generic screw trying to do the job.

Overview

The Simpson Strong-Tie SPS25344-KT Storm-Panel Screw Kit is a storm-panel fastening kit for securing removable storm panels to a structure. This is a storm-panel screw kit designed for attaching storm panels to wood, concrete, and masonry. Model Number: SPS25344-KT. If you want a hardware set that is made for seasonal panel install and removal instead of piecing together parts on your own, this is the setup.

What makes this kit useful is that it is not just a box of screws. Simpson pairs the 1/4 in. diameter, 3-7/16 in. long hand-drive screws with washered wing nuts, plastic caps, a hex-driver bit, and a carbide-tipped drill bit. That matters because storm-panel work is usually time-sensitive. A complete kit cuts down on trips back to the truck or hardware store and helps keep installation consistent across multiple openings.

The screw itself is made from Type 302 stainless steel, which is the right call for this kind of application. Storm-panel hardware often sits exposed to weather, humidity, and repeated handling. Stainless construction helps fight corrosion so the fastener stays serviceable when you need to remove and reinstall panels later. That is a real-world advantage over lower-grade hardware that can seize up, stain, or degrade over time.

The design is straightforward and practical. The coarse-threaded shank anchors into the base material, while the exposed threaded stud gives you a simple way to mount the panel and tighten it down with the included wing nut. Once the panel comes off, the included white plastic caps cover the exposed stud. That helps keep the install cleaner and makes the hardware less obtrusive between uses.

Installation is also laid out clearly. For concrete and masonry, the kit includes the drill bit needed to drill the hole before driving the screw. For wood, Simpson specifies predrilling with a 3/16 in. bit, which is not included. After that, you drive the screw until the coarse-threaded shank is fully embedded and the threaded stud is exposed for the panel and wing nut. In plain terms, it is a system meant to stay in place so you can mount and remove panels without starting from scratch every time.

In terms of use case, this fastener kit makes the most sense for homeowners, maintenance crews, builders, and contractors handling storm preparation or replacement hardware for existing panel systems. If you are outfitting a home or small building for hurricane or severe weather protection and you want matching hardware from a known structural fastening brand, this kit is a clean solution. If you only need generic screws for one-off fastening, this is more specialized than you need. But if the job is removable storm panels, this is exactly the point of the product.

Made for Repeated Storm Panel Use

This setup is built around fast seasonal panel attachment, not permanent fastening. Once the screw is installed, the exposed stud and wing nut make panel mounting and removal simple.

• Designed for attaching storm panels to wood, concrete, and masonry
• Plastic cap covers the exposed stud when panels are removed

Complete Kit, Less Guesswork

For a job like storm-panel prep, complete hardware matters. This kit gives you the main fasteners and the install accessories in one package, which makes layout and installation more predictable.

• Includes 25 screws, 25 washered wing nuts, and 25 white plastic caps
• Also includes a hex-driver bit and a 0.234 in. x 4-1/2 in. carbide-tipped drill bit

What’s in the Box

• (25) 1/4 in. x 3-7/16 in. stainless-steel storm-panel screws
• (25) 1/4 in. washered wing nuts
• (25) white plastic caps
• (1) hex-driver bit
• (1) 0.234 in. x 4-1/2 in. carbide-tipped drill bit

For wood installation, a 3/16 in. predrill bit is required and not included.

Key Specifications

Fastener Type	Hand-Drive Screw
Application	Storm Panels
Material	Type 302 Stainless Steel
Length	3-7/16 in.
Shank Diameter	1/4 in.
Packaging Quantity	25
Drive Type	Hex-driver bit included
Drill Bit Size	0.234 in. x 4-1/2 in.

Built For

Storm panel installation Hurricane prep Wood fastening Concrete fastening Masonry fastening Exterior hardware replacement

Pro Tip

If you are installing into wood, follow Simpson’s callout and predrill with a 3/16 in. bit before driving the screw. It gives you a cleaner install and helps the threaded stud sit right for easy panel mounting later.

Warranty & Support

Warranty description listed as 12 months.

Tool Nut’s Take

Tool Nut’s Take

Simpson Strong-Tie SPS25344-KT Storm-Panel Screw Kit gets the job done without piecing together hardware

If you are setting up removable storm panels, this kit makes a lot more sense than trying to build the system one part at a time.

• Who it’s for: Homeowners, property managers, and contractors installing or replacing hardware for storm panels on wood, concrete, or masonry.
• Why it stands out: Stainless screws, included wing nuts and caps, plus the driver and drill bit make it a real install kit instead of just a bag of fasteners.
• Worth knowing: It is a specialized product. Also, for wood installs, the required 3/16 in. predrill bit is not included.

Common Questions

• What is this kit used for? It is used to attach storm panels to wood, concrete, and masonry.
• What material are the screws made from? The screws are made from Type 302 stainless steel for corrosion resistance.
• How many screws are in the kit? The kit includes 25 storm-panel screws.
• Can it be used on wood as well as masonry? Yes. Simpson lists wood, concrete, and masonry as approved application materials. For wood, a 3/16 in. predrill bit is required.