S-91550A309 Length 1 1/2" Wood Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for long-lasting performance in various environments
• Superior torque transfer and reduced cam-out thanks to the dual Phillips/Square drive system
• Excellent holding power in engineered wood like plywood and OSB due to the thread-forming tapping method
• Full-length threading for maximum grip and material engagement along the entire screw length
• Streamlined installation with a standard 90° flat head that sits flush for a clean, professional finish
• Simplified pilot hole drilling using a standard 5/64" drill bit as recommended
• Compliance with environmental safety standards (RoHS 3) for responsible sourcing and use

Professional Applications & Engineering Value

These No. 8 wood screws are specifically engineered to address common challenges in woodworking and construction, particularly when working with plywood and Oriented Strand Board (OSB). The zinc-plated steel material provides reliable corrosion protection, extending the life of assemblies. The thread-forming design creates strong, permanent threads in the wood without pre-tapping, reducing splitting and ensuring a tight, secure fit. The combination of a flat head with a 90° countersink allows for a flush finish, while the fully threaded right-hand thread and pointed tip facilitate quick, easy starts and deep penetration for maximum withdrawal resistance in demanding applications.

Specification Summary & Compliance

This 1-1/2" long screw features a No. 8 size with a 0.164" thread diameter and approximately 15 threads per inch. It is designed with a standard flat head profile and is manufactured to be RoHS 3 (2015/863/EU) Compliant, ensuring it meets strict environmental safety regulations for hazardous substance restrictions.