S-98625A301 1/4"-100 x 1 3/4" Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with ultra fine 1/4"-100 thread pitch for secure, long-term fastening in high-stress environments
• Excellent corrosion resistance provided by 303 stainless steel construction, ideal for harsh industrial conditions
• Precise Class 3A thread fit ensures tight tolerances and reliable performance in critical assembly applications
• Enhanced grip and reduced component damage with ball tip design using durable alloy steel for repeated adjustments
• Easy installation in confined spaces with headless design and 3/32" hex drive for efficient tool access
• Right-hand UNS thread compatibility for seamless integration with standard industrial components
• Compliance with global safety standards including RoHS 3 and REACH for environmentally responsible manufacturing

Professional Applications & Engineering Value

This precision set screw delivers exceptional engineering value in applications requiring minimal thread profile and maximum holding strength. The 303 stainless steel body provides reliable corrosion resistance for machinery exposed to moisture or chemicals, while the ultra fine thread design significantly enhances resistance to loosening under continuous vibration—common in automotive, aerospace, and precision instrument assemblies. The ball tip, crafted from hardened alloy steel, minimizes marring on contacted surfaces, allowing for repositioning without compromising component integrity. Combined with a hex drive and headless form, it enables secure fastening in tight spaces where traditional screws cannot be used, ensuring long-term reliability in demanding industrial applications.

Specification Summary & Compliance

This set screw features a 1/4"-100 ultra fine thread with Class 3A fit per UNS standards, ensuring high precision and consistency. It measures 1 3/4" in length with a 0.156" ball tip diameter and 3/32" hex drive. The product is manufactured in compliance with RoHS 3 (2015/863/EU) under exemption 6(c) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards for industrial components.