S-90064A716 Length 3/4" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Eliminates Pre-Drilling – Self-drilling tip penetrates up to 0.08" thickness in steel and sheet metal, reducing labor and tooling costs.
- Superior Corrosion Resistance – Zinc-plated steel construction provides durable protection against rust in industrial environments.
- Enhanced Grip & Stability – Flanged hex head design distributes clamping force evenly and prevents pull-through in thin materials.
- High Thread Engagement – Fully threaded shank and 24 TPI thread forming design ensure strong, vibration-resistant fastening.
- Quick Installation – External hex drive allows for high-torque application with standard tools, speeding up assembly lines.
- Material-Specific Performance – BSD thread forming screws create precise, tight-fitting threads in steel and sheet metal without cracking.
- Consistent Sizing – No. 4-24 x 3/4" dimensions and Class 2A thread tolerance guarantee reliable interchangeability.
Professional Applications & Engineering Value
These zinc-plated steel tapping screws solve critical challenges in sheet metal and steel assembly by combining a self-drilling tip with thread forming technology. The No. 2 drill tip and fully threaded shank enable direct penetration into materials up to 0.08" thick, eliminating pre-drilling operations that cause alignment errors and production delays. The flanged hex head provides a broader bearing surface, reducing stress concentration and preventing material deformation under load. Engineered for BSD thread forming, these screws cold-form mating threads that resist loosening under vibration, making them ideal for HVAC ductwork, electrical enclosures, and machinery panels where durable, high-strength fastening is essential.
Specification Summary & Compliance
This No. 4-24 x 3/4" tapping screw features a 0.112" thread diameter with 24 TPI right-hand threads and complies with Class 2A thread tolerances. Manufactured from zinc-plated steel with an external hex drive and flanged head, it meets industry standards for thread forming screws (BSD type) and is suitable for use in steel and sheet metal applications. The product conforms to RoHS and REACH environmental directives, ensuring safe and compliant usage in industrial settings.
