Simpson #6 x 1/2" Pan Head 316 Stainless Steel Marine Screw from Simpson Strong-Tie is purpose-built for boat building, marine trade, and any application where exposure to saltwater, moisture, or chemically caustic conditions demands the highest level of corrosion protection. Engineered to fasten securely into fiberglass, plywood, and wood-substitute materials, this compact 1/2" pan head screw delivers a clean, low-profile head that seats flush against trim, rub rail, and molding on fiberglass boat hulls. With a sharp point, high/low serrated threads, and a #2 Phillips drive, it combines fast, reliable installation with the long-term durability that marine environments require.

Key Features

• Type 316 stainless steel construction - provides the ultimate corrosion resistance against saltwater, salt spray, and harsh marine chemicals, making this screw suitable for the most demanding outdoor and waterfront applications.
• High/low serrated thread form with indentations ("teeth") - cuts quickly and cleanly through high-density materials like fiberglass and plywood, reducing driving effort and speeding up assembly time.
• Extra-sharp point - starts the screw without pre-drilling in many applications, accelerating installation and reducing prep work during boat building or trim attachment.
• Pan head design with 0.263" head diameter - provides a broad bearing surface that holds trim, rub rail, and molding securely without countersinking, keeping fastener installation straightforward.
• #2 Phillips drive - compatible with standard Phillips drivers and bits, ensuring fast, tool-compatible installation in the field or on the water.
• Fully threaded 1/2" shank length - screws at or under 1" are fully threaded along the entire shank, maximizing grip and holding power in thinner fiberglass and wood-substitute panels.
• 0.138" shank diameter - sized for #6 fastener applications, balancing strength with minimal material displacement in fiberglass hulls and composite substrates.

Why This Product

• When fastening trim or rub rail to a fiberglass boat hull, standard carbon steel or zinc-plated screws corrode quickly in saltwater environments - this Type 316 stainless steel screw is specifically designed to resist that degradation, extending the life of the fastened assembly.
• The high/low serrated thread profile is engineered for high-density materials like fiberglass and wood substitutes, meaning the screw bites and holds without stripping or spinning, even in challenging composite substrates.
• From a trusted name in structural fastening, Simpson Strong-Tie marine screws are built for boat building and marine trade applications where fastener failure is not an option - the pan head profile keeps the fastener seated low and secure on the material surface.
• The sharp point eliminates the need for a pilot hole in many situations, saving time and effort during rub rail, molding, and trim installation on marine vessels and waterfront structures.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #6
• Length: 1/2 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Pan Head
• Head Diameter: 0.263 in.
• Shank Diameter: 0.138 in.
• Drive Type: #2 Phillips
• Thread Type: High/Low Serrated Threads
• Point Type: Sharp Point
• Country of Origin: Taiwan

Available Pack Options

• T06J050PX-RP25: 25 Pk
• T06J050PXC: 100 Pk
• T06J050PXM: 1000 Pk

Approved Applications

• Marine boat building and marine trade applications
• Fastening trim, rub rail, and molding to fiberglass boat hulls
• Fastening into fiberglass, plywood, and wood-substitute materials
• Wood-to-wood fastening in marine and moisture-exposed environments
• Applications requiring superior corrosion protection in 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 with serrated indentations cuts quickly through high-density materials, making it well suited for fiberglass boat hulls and composite panels.

Why is Type 316 stainless steel used for marine applications?

Type 316 stainless steel provides the ultimate in corrosion protection, making it highly resistant to saltwater, salt spray, and chemically caustic environments. This makes it the preferred material for boat building, marine trade, and any application where long-term exposure to harsh conditions is expected.

Is this screw fully threaded along its entire shank?

Yes - screws up to 1" in length are fully threaded along the entire shank length. Since this screw is 1/2" long, it is fully threaded, which maximizes grip and holding strength in thinner panels and composite substrates.

Does this screw also come in a flat head style?

Yes. According to Simpson Strong-Tie, these stainless steel marine screws are also available in a flat head configuration, offering a countersunk profile as an alternative to the pan head style.

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