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Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb
Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb
Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb
Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb
Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb
Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb

Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head 25 lb

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head delivers professional-grade reliability for exterior siding projects. Crafted from stainless steel wit…

Simpson Strong-Tie MPN S3SNDB
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $288.99, average $339.99
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About Product Overview

Simpson Strong-Tie 3D 1-1/4 in. Siding Coated Stainless Steel Nail Round Head delivers professional-grade reliability for exterior siding projects. Crafted from stainless steel with a specialized coating, these nails resist moisture and corrosion while offering smooth driving and clean, secure fastenings that stand up to the elements.

  • Finish: Coated
  • Material: Stainless Steel
  • Gauge: 14
  • Shank Type: Ring Shank (enhanced withdrawal resistance)
  • Point Type: Diamond (easy starting and reduced drive friction)
  • Head Type: Round
  • Head Diameter: 5/32 in
  • Length: 1-1/4 in
  • Callout Size: 3D
  • Container Size / Packaging: 25 lb box
  • Number in Package: 12,375 nails
  • Uses: Indoor and outdoor siding installations

Why this nail stands out for siding projects

In exterior environments, corrosion resistance is everything. The stainless-steel composition combined with a protective coating delivers dependable long-term performance on wood siding, fiber-reinforced composites, and other weather-exposed substrates. The ring-shank design digs in securely and resists pull-out, which translates to fewer callbacks on windy days and in hot, humid climates. The diamond point starts cleanly and reduces driver resistance, helping you achieve a consistent, flush seating without splitting softwood or marring harder woods.

Ideal use cases and applications

  • Wood siding installations on homes, sheds, and accents where moisture exposure is a concern
  • Weather-exposed exterior trim and paneling projects that demand reliable corrosion resistance
  • Engineered wood or composite siding environments that benefit from a robust, long-lasting fastener

Practical installation insights

  • Choose the correct driver: 14-gauge nails pair well with standard siding nailers and hammer-driven applications.
  • Aim for consistent penetration depth to ensure a clean, secure seat without overdriving or splitting the boards.
  • Use the ring shank to maximize holding power on wind-prone facades and uneven framing.
  • For outdoor projects, store nails in a dry environment to maintain coating integrity and prevent corrosion.

The Details Specifications

Brand Simpson Strong-Tie
SKU 5000211
UPC 744039141258
Unit 0
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 10 × 10 × 8
Weight 26 lbs
Cubic Feet 0.4485 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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