S-98625A349 1/4"-100 x 2 1/4" Set Screws
Set 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 Vibration Resistance – Ultra fine 1/4"-100 thread pitch provides maximum thread engagement and holding power in high-stress applications.
- Precise, Secure Fastening – Class 3A thread fit ensures tight tolerances and reliable performance in precision assemblies.
- Corrosion-Resistant Construction – 303 Stainless Steel material offers excellent durability in harsh or moist industrial environments.
- Easy Installation & Removal – 3/32" hex drive allows for straightforward tool access and torque application in confined spaces.
- Enhanced Grip & Alignment – Ball tip design minimizes surface marring while providing positive seating on curved or angled surfaces.
- Durable Tip Performance – Alloy steel tip maintains shape and function under repeated adjustments and high clamping forces.
- Global Compliance Assurance – Meets RoHS 3 and REACH environmental standards, supporting use in regulated markets.
Professional Applications & Engineering Value
This ultra fine thread set screw is engineered for applications where minimal thread adjustment and maximum holding force are critical. The 303 Stainless Steel construction provides reliable corrosion resistance, while the Class 3A thread fit ensures precise, repeatable fastening in precision machinery, optical equipment, and fine-adjustment mechanisms. The ball tip design reduces point loading and surface damage on shafts or collars, making it ideal for positioning components without compromising part integrity. Its headless and right-hand thread configuration allows for flush mounting and secure retention in tight assemblies, delivering consistent performance in demanding industrial settings.
Specification Summary & Compliance
This set screw adheres to UNS thread standards with a Class 3A thread fit for high precision. Key dimensions include a 1/4"-100 ultra fine thread, 3/32" hex drive, 2 1/4" length, and 0.156" ball tip diameter. The product is manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006), ensuring environmental regulatory adherence for industrial and export use.
