S-90096A146 6-32 x 3/8" ASME B18.6.3, SAE J933 Tapping Screws

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 with zinc-plated steel construction, extending the screw's service life in various industrial environments.
• Effortless installation and removal with a combined external hex/slotted drive, offering tooling flexibility for different assembly scenarios.
• Increased holding power and stability due to the integrated flange design, which acts as a built-in washer to distribute load.
• Optimized for high-speed assembly with coarse UNC threading, allowing for quicker driving and reduced cross-threading risk.
• Guaranteed dimensional consistency and performance reliability, manufactured to meet the stringent ASME B18.6.3 specification.
• Safe for regulated industries with full compliance to RoHS 3, ensuring the absence of hazardous substances.

Professional Applications & Engineering Value

These 6-32 UNC tapping screws are engineered to solve common fastening challenges in metalworking and fabrication. The Type F thread cutting design and coarse thread spacing enable them to form precise, strong threads in ductile materials like aluminum, brass, cast iron, and sheet metal, eliminating the time and cost associated with tapping operations. The zinc-plated steel material provides a durable barrier against oxidation, crucial for components exposed to moisture or harsh conditions. The combination of an external hex/slotted drive and a flange offers versatility for powered or manual tools while increasing the bearing surface to prevent pull-through in thin materials. This makes them an indispensable industrial fastener for assembly lines, electrical enclosures, and machinery where efficiency and joint integrity are paramount.

Specification Summary & Compliance

This screw features a No. 6-32 UNC coarse thread with a 0.138" diameter and is fully threaded to a 3/8" length for maximum grip. It is designed for use with a No. 31 drill bit (0.12" diameter). The product is manufactured in accordance with ASME B18.6.3 (which references SAE J933) for dimensional and performance standards, ensuring Class 2A thread fit and interchangeability. It is also confirmed to be RoHS 3 (2015/863/EU) Compliant, adhering to environmental regulations for hazardous substance restrictions.