S-93945A077 Length 2 1/2" 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for demanding industrial environments.
- Excellent thread-forming capability for secure, vibration-resistant fastening in sheet metal without pre-tapped holes.
- High-strength square drive (No. 3) provides superior torque transmission and reduces cam-out risk during installation.
- Fully threaded design ensures maximum grip and holding power along the entire 2 1/2" length.
- Standard 82° flat head allows for a flush, clean finish when countersunk into sheet metal applications.
- Reliable performance in thin materials, capable of drilling through up to 0.025" thickness with a 5.5 mm pilot hole.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets international regulatory standards for industrial use.
Professional Applications & Engineering Value
These 18-8 stainless steel flat head tapping screws are engineered specifically for sheet metal applications, where their thread-forming design creates strong, permanent threads in ductile materials. The A/AB Type and fully threaded shank provide exceptional pull-out resistance, making them ideal for HVAC systems, electronic enclosures, and automotive assemblies. The 0.242" thread diameter and 10 threads per inch offer a fine balance between engagement strength and installation ease. The square drive ensures high torque application without stripping, reducing assembly time and improving reliability in high-vibration environments. Their corrosion-resistant properties ensure long-term durability, even in harsh conditions.
Specification Summary & Compliance
This product features a 0.242" thread diameter with 10 threads per inch, a No. 3 square drive, and an 82° countersink angle for standard flat head installation. The screws are fully threaded and designed as A/AB Type thread forming tapping screws for use in sheet metal. They comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they are free from hazardous substances and suitable for global industrial supply chains.
