Simpson #10 x 2" Flat Head 316 Stainless Steel Marine Screw from Simpson Strong-Tie is purpose-built for boat building and marine trade applications where superior corrosion resistance is non-negotiable. Crafted from Type 316 stainless steel, this fastener stands up to saltwater exposure, harsh chemicals, and the demanding conditions of coastal and marine environments. Whether you are securing trim, rub rail, or molding to a fiberglass boat hull, or fastening into plywood and wood-substitute materials, this marine screw delivers a reliable, lasting hold.

Key Features

• Type 316 Stainless Steel material - provides the ultimate in corrosion protection, making this screw suitable for saltwater, chemically caustic, and severe marine environments where lesser materials would corrode and fail.
• High/Low Serrated Thread form with indentations ("teeth") - cuts easily and quickly through high-density materials like fiberglass, plywood, and wood-substitute boards, reducing drive effort and speeding up assembly.
• Extra-sharp point - speeds screw starts during assembly, saving time and reducing the chance of slipping or surface damage when working on fiberglass or composite materials.
• Flat head profile with 0.363 in. head diameter - sits flush with or below the surface for a clean, low-profile finish ideal for trim and rub rail applications on boat hulls.
• #2 Phillips drive - works with standard Phillips drivers and bits that are already common in marine and boat-building tool kits, making installation straightforward.
• 2" length with 0.190 in. shank diameter - sized to penetrate securely into fiberglass and composite substrates commonly used in boat hull construction without over-penetrating thin panels.

Why This Product

• Type 316 stainless steel is specifically recognized for its enhanced resistance to chlorides and marine chemicals, making it the right choice when standard stainless or zinc-coated fasteners would corrode in saltwater or chemical exposure.
• The specially engineered high/low serrated thread design is optimized for fiberglass, plywood, and wood-substitute materials - the exact substrates found in boat hull and marine trim applications - so you get a secure grip without splitting or over-stressing the material.
• The flat head design allows trim, rub rail, and molding pieces to sit flush against fiberglass boat hulls, producing a clean professional finish that is both functional and visually refined.
• Simpson Strong-Tie's marine fastener line is designed specifically for boat building and marine trade use, meaning this screw is engineered for the real-world demands of that environment rather than adapted from a general-purpose product.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length (in.): 2
• Head Type: Flat Head
• Head Diameter (in.): 0.363
• Shank Diameter (in.): 0.190
• Drive Type: #2 Phillips
• Thread Type: High/Low Serrated Threads
• Point Type: Sharp Point
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Country of Origin: Taiwan

Available Pack Options

• T10J200FX-RP8: 8 Pk
• T10J200FXC: 100 Pk
• T10J200FXM: 1000 Pk

Approved Applications

• Fastening trim, rub rail, and molding to fiberglass boat hulls
• Securing components in fiberglass assemblies requiring corrosion-resistant fasteners
• Fastening into plywood in marine and boat-building construction
• Attaching parts in wood-substitute materials used in marine environments
• Applications exposed to severe marine conditions or chemically caustic environments requiring the ultimate in corrosion protection

Frequently Asked Questions

What materials can these marine screws fasten into?

These screws are designed to fasten securely in fiberglass, plywood, and wood-substitute materials. The high/low serrated thread form is specially engineered to cut through high-density materials quickly and reliably, making them well suited for boat hull trim, rub rail, and molding applications.

Why is Type 316 stainless steel used instead of standard stainless steel for marine applications?

Type 316 stainless steel offers superior resistance to saltwater, chlorides, and many chemically caustic environments compared to standard grades of stainless steel. This makes it the preferred material for fasteners used in boat building and marine trade applications where corrosion protection is critical.

Are these screws available in a pan head style as well?

Yes. According to Simpson Strong-Tie, these stainless-steel marine screws also come in a pan head configuration, giving you the option to choose the head profile that best suits your application.

What drive tool is needed to install these screws?

These screws use a #2 Phillips drive, which is a standard drive type compatible with common Phillips drivers and bits already found in most marine and boat-building tool kits.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.