S-91979A675 1/4"-20 x 3/4" 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 corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- Precise thread engagement with Class 3A thread fit ensures reliable, vibration-resistant fastening.
- Easy installation and removal using a standard 1/8" hex key, saving time on assembly lines.
- Effective pressure relief through the vented design with 0.062" diameter, preventing pressure buildup.
- Flush mounting capability due to the headless design, allowing for seamless integration in tight spaces.
- Durable coarse UNC threads provide strong holding power and resist stripping in high-stress applications.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 1/4-20 UNC set screw is engineered to address common industrial challenges like component slippage and corrosion. The 18-8 stainless steel material offers excellent resistance to rust and chemicals, making it suitable for machinery, automotive, and outdoor equipment. Its hex socket drive and headless design allow for secure, low-profile fastening in confined areas, while the Class 3A thread fit ensures tight tolerances that minimize loosening under vibration. The vented feature with a 0.062" diameter helps release trapped air or fluids, enhancing safety in pressurized systems. Ideal for precision assemblies, this screw delivers long-term reliability and ease of maintenance in demanding industrial applications.
Specification Summary & Compliance
This set screw adheres to UNC coarse thread standards with a Class 3A thread fit for high precision. Key dimensions include a 1/4"-20 thread size, 3/4" length, and 1/8" hex drive. It is manufactured from 18-8 stainless steel and features a cup tip for secure contact. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial use.
