S-90033A105 Length 3/8" 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 black-oxide steel coating for extended service life in demanding industrial environments
- Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapped holes
- Optimized 82° countersink angle ensures flush mounting and prevents snagging in sheet metal assemblies
- Phillips drive with No. 1 size provides secure tool engagement and reduces cam-out during installation
- Fully threaded right-hand design delivers maximum holding power across the entire 3/8" length
- Precision No. 4-24 thread specification ensures consistent performance and interchangeability
- Compliant with industry standards including RoHS 3 and REACH for global manufacturing applications
Professional Applications & Engineering Value
These black-oxide steel tapping screws are engineered specifically for sheet metal applications where reliability and durability are paramount. The thread forming technology eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating stronger thread engagement. The 82° countersink angle and flat head design provide a smooth, flush finish that prevents interference in tight assemblies. With fully threaded construction and right-hand threading, these screws distribute clamping force evenly, preventing loosening from vibration - a critical advantage in automotive, HVAC, and electronic enclosure applications where sheet metal is predominant.
Specification Summary & Compliance
This No. 4-24 x 3/8" tapping screw features precision Class 2A thread tolerances with 24 threads per inch and requires a No. 44 drill bit (0.086" diameter) for proper installation. Manufactured to Tapping Screw Type A/AB standards with standard flat head profile and pointed tip for easy starting. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards are met for industrial fastener applications.
