S-91857A197 8-32 x 3/4" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction and passivated finish.
• High-strength performance with a tensile strength of 100,000 psi and Rockwell B100 hardness for reliable, durable fastening.
• Wide compatibility and easy installation with a standard slotted drive and coarse UNC threading for quick assembly.
• Precise and secure thread fit ensured by Class 2A thread tolerance, reducing the risk of cross-threading and loosening.
• Full-length threading provides maximum grip and holding power along the entire 3/4" length of the screw.
• Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety.
• Rounded head design offers a finished appearance and helps prevent damage to surrounding materials.

Professional Applications & Engineering Value

This 8-32 UNC 3/4" slotted rounded head screw is engineered to solve critical challenges in demanding industrial settings. Its core material, 316 stainless steel, provides exceptional resistance to corrosive elements like chlorides and acids, making it ideal for marine, chemical processing, and food industry applications where moisture and chemicals are prevalent. The passivated finish further enhances this corrosion resistance, extending the screw's service life and reducing maintenance costs. The fully threaded design and coarse thread spacing ensure a strong, reliable hold in various materials, from metal to plastic, while the slotted drive allows for straightforward installation with standard tools. This combination of features addresses common pain points such as fastener failure, corrosion-induced degradation, and installation inefficiency, delivering long-term reliability and performance in critical assemblies.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit for consistent, reliable engagement. It conforms to the ASME B18.6.3 specification for slotted head screws, ensuring interchangeability and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances. Thread specifications include UNC coarse thread, right-hand direction, and a size of 8-32, with a length of 3/4 inch.