Simpson #10 x 1-1/2" Pan Head 316 Stainless Steel Marine Screw by Simpson Strong-Tie is purpose-built for boat building and marine trade applications where corrosion resistance is non-negotiable. Crafted from Type 316 stainless steel - the grade most resistant to saltwater, moisture, and chemically caustic environments - this fastener drives cleanly into fiberglass, plywood, and wood-substitute materials, delivering a secure, long-lasting hold even in the most demanding marine conditions. Whether you're installing rub rail, trim, or molding on a fiberglass hull, this pan head wood screw is engineered to perform where standard fasteners fail.

Key Features

• Type 316 Stainless Steel material - provides superior corrosion resistance against saltwater, moisture, and harsh chemicals, making it the right choice for offshore and coastal marine applications where lesser alloys would corrode prematurely
• High/Low Serrated Thread design - incorporates indentations that cut quickly through high-density materials like fiberglass and plywood, reducing drive effort and delivering a firm, vibration-resistant grip
• Sharp Point tip - speeds up screw starts during assembly, reducing the need for pre-drilling in many applications and saving significant time on the job
• Pan Head profile with 0.365" head diameter - sits flush against surfaces without sinking in, distributing clamping load evenly across trim, rub rail, and molding applications on fiberglass boat hulls
• #2 Phillips drive (#10 size) - compatible with standard driver bits for fast, controlled installation, reducing cam-out risk during high-torque driving in dense substrates
• 0.190" shank diameter - sized for reliable engagement in wood-substitute and composite materials without splitting or over-stressing the surrounding substrate

Why This Product

• Designed specifically for fiberglass boat construction - this screw's high/low serrated threads were engineered to fasten securely in fiberglass, plywood, and wood-substitute materials, giving marine builders and repair professionals a fastener purpose-matched to their substrate rather than a general-purpose alternative
• Type 316 stainless steel offers the ultimate in corrosion protection for marine environments - where saltwater, bilge chemicals, and constant moisture exposure would compromise standard stainless or zinc-plated screws, 316 SS holds up over the long term
• Ideal for visible trim and molding applications - the pan head style delivers a clean, professional appearance when applying rub rail, trim, and decorative molding to fiberglass hulls, where fastener aesthetics matter alongside function
• Backed by Simpson Strong-Tie - a brand with a long track record in structural fastening, bringing that same engineering discipline to marine-grade screws designed for boat building and marine trade use

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length: 1-1/2 in.
• Head Type: Pan Head
• Head Diameter: 0.365 in.
• Shank Diameter: 0.190 in.
• 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

• T10J150PXC: 100 Pk
• T10J150PXM: 1000 Pk

Approved Applications

• Fastening trim, rub rail, and molding to fiberglass boat hulls
• Boat building and marine trade construction requiring maximum corrosion resistance
• Fastening into fiberglass, plywood, and wood-substitute materials in harsh marine environments
• Applications exposed to saltwater, moisture, and chemically caustic conditions

Frequently Asked Questions

What materials can this marine screw fasten into?

This screw is designed to fasten securely in fiberglass, plywood, and wood-substitute materials. The high/low serrated thread form incorporates indentations that cut easily and quickly through high-density materials, making it well suited to fiberglass boat construction and marine repair work.

Why is Type 316 stainless steel used instead of standard stainless steel?

Type 316 stainless steel provides the ultimate in corrosion protection, particularly in marine and chemically caustic environments. It offers greater resistance to saltwater, moisture, and harsh chemicals than standard 304 stainless steel, making it the preferred material for boat building and marine trade fasteners where long-term performance is critical.

What is the difference between a pan head and a flat head on these screws?

The pan head profile sits on top of the surface, distributing clamping load broadly - it is well suited for trim, rub rail, and molding applications where a raised head is acceptable. Simpson Strong-Tie also offers this marine screw in a flat head style for applications where a flush or countersunk installation is required.

How long are the threads on this screw?

Screws up to 1" in length are fully threaded. Screws more than 1" long - including this 1-1/2" length - are threaded approximately 2/3 of the shank length, which helps provide optimal grip and pull-out resistance in fiberglass, plywood, and composite substrates.

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