Simpson #8 x 2" Self-Drilling Wire-Lath Modified Truss-Head Screw in Type 410 Stainless Steel is an engineered metal fastener from Simpson Strong-Tie, purpose-built for securing metal lath to steel studs and attaching corrugated siding panels to structural framing. Designed to drill through metal without predrilling, this self-drilling screw delivers reliable holding strength across residential, agricultural, and commercial construction applications where speed and precision matter.

Key Features

• Self-Drilling Drill Point - eliminates the need for predrilling, saving installation time and reducing labor on metal lath and corrugated siding panel work.
• Modified Truss Head with 0.42" head diameter - the low-profile, wide-bearing head distributes clamping force evenly across metal lath surfaces, reducing the risk of pull-through and improving panel security.
• #2 Phillips Drive - compatible with standard #2 Phillips bits for fast, consistent drive with commonly available tools, minimizing bit changes on the job site.
• Type 410 Stainless Steel material - can be hardened through heat treatment, giving this screw the toughness to penetrate metal substrates while offering meaningful corrosion resistance in demanding environments.
• 18 TPI tapping threads - the thread count provides strong thread engagement in steel studs and metal substrates, locking the fastener securely without stripping.
• 2" length with 1.517" max grip length - sized to handle a range of metal lath and corrugated panel thicknesses, giving installers confident bite through the full assembly.

Why This Product

• Self-drilling design means no pilot hole is required - installers can drive directly into steel studs and move through wire lath or corrugated siding panel jobs faster with less equipment on hand.
• The modified truss head profile is specifically suited to wire lath applications, where a wide, low head seats cleanly against mesh surfaces without snagging or causing stress concentrations.
• Type 410 stainless steel combines hardenability with corrosion resistance, making this screw a practical choice for metal framing applications where both mechanical strength and environmental durability are needed.
• At 18 TPI with tapping threads, this fastener creates its own mating thread on the first drive - no nuts or pre-tapped holes required - streamlining installation in steel stud framing on residential and commercial projects alike.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #8
• Length: 2 in.
• Head Type: Modified Truss Head
• Head Diameter: 0.42 in.
• Drive Type: #2 Phillips
• Thread Type: Tapping Threads
• TPI: 18
• Max. Grip Length: 1.517 in.
• Point Type: Drill Point
• Material: Type 410 Stainless Steel
• Country of Origin: Taiwan

Available Pack Options

• F08T200KDC: 100 Pk
• F08T200KDM: 1000 Pk
• F08T200KDB: 2500 Pk

Approved Applications

• Wire Lath - fastening metal lath to steel studs in plastering and stucco systems
• Corrugated siding panels - attaching corrugated metal panels to steel stud framing

Frequently Asked Questions

Does this screw require a pilot hole before installation?

No. The drill point on this screw is designed to self-drill through metal substrates, so no predrilling or pilot hole is needed before driving into steel studs or metal framing.

What drive bit does this screw require?

This screw uses a #2 Phillips drive, which is a standard bit type compatible with most drills and impact drivers used in framing and finish work.

How does Type 410 stainless steel compare to other stainless grades for this application?

Type 410 stainless steel can be hardened through heat treatment, which gives it the mechanical strength needed to drill through metal. It provides meaningful corrosion resistance but does not offer the same level of corrosion resistance as Type 316 or Type 305 stainless steel. It is well-suited for applications where drilling performance and moderate corrosion resistance are both priorities.

What is the maximum grip length for this screw?

The maximum grip length for this #8 x 2" self-drilling wire-lath screw is 1.517 in., which reflects the usable clamping range when fastening metal lath or corrugated panel assemblies to steel studs.

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