S-94115A056 2-56 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Secure anti-loosening performance with green nylon 6/6 plastic tip that maintains grip across -50° to 250° F temperature fluctuations
• Exceptional thread precision through Class 3A fit ensures tight, reliable fastening in high-vibration industrial environments
• Superior corrosion resistance from black-oxide alloy steel construction extending service life in demanding applications
• Optimized torque transmission via 0.035" hex drive design preventing tool slippage during installation
• Space-saving headless profile enables flush mounting where clearance is limited
• Enhanced durability with Rockwell C28 hardness balancing strength and machinability
• Regulatory compliance assurance meeting ASME B18.3 specifications and RoHS 3/REACH environmental standards

Professional Applications & Engineering Value

This precision-engineered 2-56 UNC set screw solves critical fastening challenges in industrial assemblies requiring minimal protrusion and vibration resistance. The black-oxide alloy steel construction provides superior corrosion protection while maintaining Rockwell C28 hardness for durable thread engagement. Its green nylon 6/6 plastic tip creates permanent friction locking without damaging shaft surfaces, making it ideal for precision equipment, automotive components, and electronic enclosures where coarse thread spacing enables rapid installation. The headless design with hex drive accommodates confined spaces while ensuring reliable torque application during maintenance cycles.

Specification Summary & Compliance

Manufactured to ASME B18.3 standards with Class 3A thread fit for precision tolerance. Features UNC coarse threads (2-56) with right-hand direction and 1/4" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certifications include alloy steel with black-oxide surface treatment and nylon 6/6 plastic tip meeting specified temperature range requirements.