S-90628A321 12-24 x 7/8" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior corrosion resistance with coated steel construction, extending service life in harsh industrial environments
- Efficient thread forming design creates strong, permanent threads in steel and sheet metal without chip removal
- Integrated sealing washer provides reliable moisture and dust protection at installation points
- Self-drilling tip eliminates pre-drilling requirements, reducing installation time and labor costs
- External hex drive delivers maximum torque transmission and prevents stripping during high-torque applications
- Full threading ensures consistent load distribution along the entire fastener length
- RoHS 3 compliance guarantees environmental safety and regulatory acceptance in global markets
Professional Applications & Engineering Value
This 12-24 UNC thread forming tapping screw addresses critical challenges in metal fabrication and assembly operations. The corrosion-resistant coated steel construction combined with the steel/rubber sealing washer creates a durable barrier against environmental degradation, particularly valuable in outdoor equipment, HVAC systems, and electrical enclosures. The thread forming (CSD) design generates zero metal chips while creating stronger thread engagement than cutting alternatives, making it ideal for sheet metal applications where debris contamination must be avoided. The drilling tip penetrates up to 0.21" thickness, eliminating secondary drilling operations and significantly reducing assembly time in high-volume manufacturing environments.
Specification Summary & Compliance
This fastener features UNC coarse threads with standard Class 2A tolerances, ensuring reliable engagement in various materials. The external hex drive (0.313" width) provides secure tool engagement, while the 7/8" length offers versatile fastening depth options. Manufactured to industry standards for thread forming tapping screws, this product is fully RoHS 3 (2015/863/EU) Compliant, meeting stringent environmental regulations for hazardous substance restrictions in industrial components.
