S-93985A303 1/4"-20 Shoulder Screws
Shoulder 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 416 Stainless Steel construction, ideal for harsh industrial environments
- Precise alignment and reduced wear due to the 5/16" shoulder diameter with tight tolerances for exact positioning
- High-strength performance offering 120,000 psi tensile strength and Rockwell C26 hardness for demanding applications
- Easy installation and removal with a 5/32" hex socket drive, minimizing tool slippage and damage
- Reliable thread engagement from UNC coarse threads and Class 2A fit, ensuring secure fastening in various materials
- Durable, smooth head design that reduces friction and allows for flush mounting in assemblies
- Compliance with environmental standards including RoHS 3 and REACH, supporting sustainable manufacturing practices
Professional Applications & Engineering Value
This 416 Stainless Steel shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The precise shoulder diameter and length with minimal tolerances ensure exact component positioning, reducing misalignment and wear in machinery, pivots, and rotating assemblies. Its UNC coarse threads and Class 2A thread fit provide robust fastening in metals and plastics, while the socket head design with a hex drive allows for efficient installation in confined spaces. Ideal for applications like automotive linkages, conveyor systems, and precision instruments, this screw offers long-lasting performance with high tensile strength and corrosion resistance, minimizing maintenance and downtime in demanding environments.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit and UNC coarse thread standards, with precise shoulder diameter and length tolerances (e.g., shoulder diameter: -0.001" to 0", shoulder length: 0" to 0.002") for accurate alignment. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
