Simpson #8 x 1-1/2" Pan Head 316 Stainless Steel Marine Screw by Simpson Strong-Tie is purpose-built for boat building, marine trade, and any application where corrosion resistance is non-negotiable. Crafted from Type 316 stainless steel, this fastener resists saltwater, harsh chemicals, and the relentless moisture of marine environments - making it a trusted choice for professionals fastening trim, rub rail, and molding to fiberglass boat hulls. The pan head profile, #2 Phillips drive, and high/low serrated thread design combine to deliver fast, secure installation in fiberglass, plywood, and wood-substitute materials.

Key Features

• Type 316 Stainless Steel material - delivers the ultimate in corrosion protection, withstanding saltwater exposure, chemical contact, and extreme marine conditions that would degrade standard steel fasteners
• High/Low Serrated Thread design - incorporates indentations that cut quickly and cleanly through high-density materials like fiberglass and wood-substitute panels, reducing drive effort and improving holding power
• Sharp Point tip - speeds screw starts during assembly so installers can work faster without pre-drilling in compatible materials
• Pan Head profile with 0.314 in. head diameter - sits flush against the surface to provide a clean, low-profile finish suitable for visible trim and molding applications
• #2 Phillips drive - works with standard driver bits already in most tool kits, reducing the need for specialty tooling on the job site or in the boat shop
• 0.164 in. shank diameter at #8 screw size - delivers the structural grip needed for fastening trim, rub rail, and structural panels without splitting thinner materials
• 1-1/2 in. length - provides sufficient thread engagement in layered fiberglass, plywood, and composite substrates common in marine construction

Why This Product

• Designed specifically for marine and boat-building trades, this screw addresses the unique challenge of fastening into fiberglass and wood-substitute materials where standard wood screws strip out or corrode prematurely - Type 316 stainless steel holds up where lesser alloys fail
• The combination of a sharp point and high/low serrated threads means faster assembly with fewer pre-drilling steps, reducing labor time when installing rub rails, trim, and molding along fiberglass boat hulls
• Pan head geometry keeps the fastener head low and surface-flat, producing a clean finished appearance on visible exterior surfaces - important for both aesthetics and performance in trim and molding work
• Engineered by Simpson Strong-Tie specifically for corrosive marine environments, this screw offers confidence in applications where fastener failure due to rust or chemical degradation is not an option

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #8
• Length (in.): 1 1/2
• Head Type: Pan Head
• Head Diameter (in.): 0.314
• Shank Diameter (in.): 0.164
• 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

• T08J150PXC: 100 Pk
• T08J150PXM: 1000 Pk

Approved Applications

• Marine fastening - attaching trim, rub rail, and molding to fiberglass boat hulls in saltwater and chemically harsh environments
• Fastening Wood-to-Wood - securing plywood and wood-substitute materials in applications requiring superior corrosion resistance

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 - making it well suited for boat-building and marine trade applications where these substrates are common.

Why is Type 316 stainless steel important for marine applications?

Type 316 stainless steel provides the ultimate in corrosion protection, resisting the damaging effects of saltwater, moisture, and many chemically caustic conditions that cause standard steel fasteners to rust and fail prematurely in marine environments.

What is the advantage of the high/low serrated thread design?

The high/low serrated thread form incorporates indentations that cut easily and quickly through high-density materials such as fiberglass and wood-composite panels, allowing for faster installation and a secure, reliable hold.

Is this screw available in a flat head style as well?

Yes - according to Simpson Strong-Tie, these stainless steel marine screws also come in a flat head configuration in addition to this pan head version.

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