S-94355A707 1/4"-20 x 5/8" ASME B18.3 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 from 18-8 stainless steel construction, ideal for harsh industrial environments.
- Exceptional mechanical strength with Rockwell B80 hardness for reliable, long-term holding power.
- Precise Class 3A thread fit ensures tighter tolerances and secure, vibration-resistant fastening.
- Hex drive design allows for high-torque installation and removal with standard tools.
- Flat tip geometry provides maximum surface contact and minimizes damage to the mating component.
- Compliance with ASME B18.3 guarantees consistent quality and dimensional accuracy.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
This 1/4"-20 UNC Class 3A set screw is engineered to address critical fastening challenges in demanding industrial applications. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, extending service life in humid or chemically aggressive environments. Its hex headless design and coarse thread spacing facilitate easy installation in confined spaces while maintaining a secure grip. The flat tip distributes clamping force evenly, preventing component slippage and damage. Ideal for securing gears, pulleys, and collars on shafts, this fastener provides reliable performance in machinery, automotive, and assembly lines where vibration resistance and high hardness are paramount.
Specification Summary & Compliance
This set screw adheres to UNC thread standards with a Class 3A thread fit for superior precision. Dimensions include a 1/4"-20 thread size, 5/8" length, and 1/8" hex drive. Manufactured in compliance with ASME B18.3 specifications, it meets stringent quality and dimensional requirements. The product is also certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and suitable for regulated industries.
