Simpson Pan Head Marine Screw, #10 x 1", Type 316 Stainless Steel by Simpson Strong-Tie is engineered for boat building and marine trade applications where superior corrosion resistance is non-negotiable. Featuring high/low serrated threads and an extra-sharp point, this fastener drives quickly and securely into fiberglass, plywood, and wood-substitute materials - delivering reliable holding power even in saltwater, humid, or chemically caustic environments. With a #2 Phillips pan head profile and fully threaded 1" shank, this marine screw is a trusted choice for professionals applying trim, rub rail, and molding to fiberglass boat hulls.

Key Features

• Type 316 Stainless Steel material and finish - provides the ultimate level of corrosion protection, withstanding saltwater immersion, marine spray, and harsh chemical exposure that would degrade standard fasteners
• High/Low Serrated Thread form - incorporates indentations ("teeth") that cut easily and quickly through high-density materials like fiberglass and plywood, reducing drive effort and improving thread engagement
• Sharp Point tip - speeds screw starts during assembly, reducing pre-drilling requirements and saving installation time in demanding marine environments
• Pan Head profile with 0.365" head diameter - provides a broad, low-profile bearing surface that sits flush against trim, rub rail, and molding without damaging surrounding material
• #2 Phillips drive - a universally compatible drive type that works with standard tools found on any job site or boat yard
• 1" length, fully threaded shank - screws up to 1" in length are fully threaded, maximizing grip and pull-through resistance in the materials being fastened
• 0.190" shank diameter (#10 size) - provides the structural strength needed for securing marine trim, molding, and rub rail under repeated stress and vibration

Why This Product

• Designed specifically for marine and boat building applications, this screw offers corrosion resistance suited to environments where standard stainless or plated fasteners fail prematurely - making it a purpose-built solution rather than a general-use substitute.
• The high/low serrated thread form is specially engineered for fiberglass and wood-substitute materials - the exact substrates common in boat hull construction - so installers get fast, secure seating without stripping or splitting.
• At 1" in length with a fully threaded shank, every thread engages the workpiece from tip to head, maximizing holding strength in trim, rub rail, and molding applications where pull-through resistance matters.
• Simpson Strong-Tie's broad marine fastener line means this pan head screw pairs with a flat head variant in the same product family, giving fabricators and boat builders consistent corrosion-resistant fastening across different installation needs on the same vessel.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length (in.): 1
• Head Type: Pan Head
• Head Diameter (in.): 0.365
• 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

• T10J100PXC: 100 Pk
• T10J100PXM: 1000 Pk

Approved Applications

• Marine construction and boat building
• Fastening wood-to-wood in corrosive or high-moisture environments
• Applying trim, rub rail, and molding to fiberglass boat hulls
• Fastening into fiberglass, plywood, and wood-substitute materials

Frequently Asked Questions

What materials is this marine screw designed to fasten into?

This screw is designed to fasten securely into fiberglass, plywood, and wood-substitute materials. The high/low serrated thread form is specially engineered to cut quickly through these high-density substrates, making it well suited for boat hull trim, rub rail, and molding installations.

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

Type 316 Stainless Steel provides the ultimate in corrosion protection, offering greater resistance to saltwater, marine spray, and chemically caustic conditions compared to standard stainless grades. This makes it the preferred material for boat building and any application involving prolonged exposure to harsh marine environments.

Is the 1" shank fully threaded?

Yes. Screws up to 1" in length are fully threaded, meaning every thread along the shank engages the workpiece. This maximizes holding power and pull-through resistance, which is especially important when fastening trim and molding to fiberglass boat hulls.

Does this pan head marine screw come in other head styles?

Yes. According to Simpson Strong-Tie product information, these stainless-steel marine screws are also available in a flat head configuration, giving installers the option to choose the head profile that best suits their specific application on the same vessel or project.

Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications above for exact measurements.