S-90337A325 1/4"-20 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
- Exceptional strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness to withstand high-stress applications
- Precise component alignment through the 5/16" shoulder diameter with tight tolerances (-0.001" to 0") ensuring accurate positioning
- Space-saving low-profile design with socket head and hex drive for applications with limited clearance
- Reliable thread engagement with Class 2A UNC coarse threads providing secure fastening in industrial assemblies
- Easy installation and maintenance using standard 0.156" hex tools for quick assembly and disassembly
- Compliance with environmental regulations including RoHS 3 and REACH for global market acceptance
Professional Applications & Engineering Value
This precision shoulder screw delivers exceptional engineering value in applications requiring accurate component positioning and reliable fastening. The 18-8 stainless steel construction with passivated finish provides superior corrosion resistance, making it ideal for machinery, automation systems, and electronic enclosures exposed to moisture or chemicals. The 5/16" shoulder diameter with precise tolerances ensures perfect alignment of moving parts, bearings, and gears, eliminating misalignment issues that cause premature wear. The low-profile socket head design allows for compact assemblies while maintaining accessibility for maintenance. With 70,000 psi tensile strength and Class 2A UNC threads, this shoulder screw maintains structural integrity under vibration and dynamic loads, reducing maintenance frequency and downtime in industrial operations.
Specification Summary & Compliance
This shoulder screw features Class 2A thread fit with UNC 1/4"-20 coarse threading and precise shoulder dimensions (5/16" diameter with -0.001" to 0" tolerance). Manufacturing complies with industry standards for dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for hazardous substance restrictions.
