S-91857A537 1/4"-20 x 1/2" ASME B18.6.3 Stainless Steel Round Head Slotted Screws
Stainless Steel Round Head Slotted Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
- Enhanced durability and longevity from the passivated surface finish, providing an extra protective oxide layer
- High-strength performance with a 100,000 psi tensile strength, suitable for demanding mechanical applications
- Reliable and easy installation thanks to the standard slotted drive and coarse UNC thread for quick assembly
- Precise thread fit with Class 2A tolerance, ensuring consistent engagement and reduced risk of cross-threading
- Full threading along the 1/2" length for maximum grip and holding power in various material thicknesses
- Compliance with major industrial standards including ASME B18.6.3, ensuring quality and interchangeability
Professional Applications & Engineering Value
This 316 stainless steel rounded head slotted screw is engineered to solve critical challenges in industrial settings where corrosion and mechanical stress are prevalent. The passivated finish significantly enhances the innate corrosion resistance of 316 stainless steel, making it an optimal choice for chemical processing equipment, marine hardware, and food-grade machinery. Its coarse UNC 1/4"-20 thread and Class 2A fit provide reliable fastening in softer materials or where vibration resistance is needed, reducing installation time and preventing thread stripping. The combination of a 100,000 psi tensile strength and Rockwell B100 hardness ensures the fastener maintains integrity under heavy loads, offering long-term reliability and reducing maintenance cycles in demanding industrial screw applications.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC 1/4"-20 coarse thread specification. It is manufactured in compliance with the ASME B18.6.3 standard for slotted head screws. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.
