S-90086A611 4-40 x 3/4" ASME B18.6.3, SAE J933 Tapping Screws
Tapping Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior thread cutting performance in aluminum, brass, cast iron, and sheet metal for reliable, permanent fastening without pre-tapped holes.
- Enhanced corrosion resistance provided by the zinc-plated steel finish, extending the screw's service life in various industrial environments.
- Optimized for high-efficiency assembly with a fully threaded, coarse UNC design that ensures maximum thread engagement and pull-out strength.
- Secure and flush installation with a standard 82° flat head profile that sits countersunk for a smooth, professional finish.
- Easy and fast installation with a Phillips No. 1 drive, reducing cam-out and tool slippage for improved worker productivity.
- Guaranteed dimensional consistency and performance reliability by conforming to the rigorous ASME B18.6.3 standard.
- Safe for regulated industries with RoHS 3 compliance, ensuring the absence of hazardous substances.
Professional Applications & Engineering Value
These Type F thread cutting screws are engineered to solve the common industrial challenge of creating strong, durable threads in ductile materials like aluminum, brass, cast iron, and sheet metal. The zinc-plated steel construction provides a critical barrier against rust and corrosion, which is essential for components exposed to moisture or harsh conditions. The coarse 4-40 UNC thread and blunt tip are specifically designed to efficiently cut and form a mating thread, eliminating the time and cost associated with tapping operations beforehand. This makes them an invaluable tapping screw for high-volume assembly lines in automotive, machinery, and metal fabrication, where speed, strength, and long-term reliability are non-negotiable.
Specification Summary & Compliance
This screw is specified with a #4-40 UNC coarse thread and a length of 3/4 inch. It is designed for use with a No. 41 drill bit (0.096" diameter) and features an 82° countersink angle for the flat head. The manufacturing and dimensional criteria strictly adhere to the ASME B18.6.3 standard. Furthermore, this product is confirmed to be RoHS 3 (2015/863/EU) Compliant.
