S-91971A013 3/8"-16 Square Nuts

Key Features & Benefits at a Glance

• Exceptional heat resistance maintains structural integrity in extreme environments up to 3630°F, preventing deformation in high-temperature industrial processes
• Superior strength-to-weight ratio from carbon fiber construction provides 17,000 psi tensile strength while reducing component weight for efficiency
• Reliable thread engagement with Class 6H thread fit ensures precise, vibration-resistant connections in demanding applications
• Optimized thermal management with 12 W/m-K thermal conductivity helps dissipate heat effectively from critical assembly points
• Enhanced durability through chopped carbon fiber construction delivers excellent impact resistance and long service life
• Simplified installation with external square drive allows for quick, secure tool engagement and efficient assembly
• Full regulatory compliance with REACH and RoHS 3 standards ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This carbon fiber square nut delivers critical performance advantages in extreme thermal environments where traditional metal fasteners fail. The chopped construction carbon fiber matrix provides exceptional thermal stability while maintaining 17,000 psi tensile strength at temperatures reaching 3630°F - ideal for aerospace, automotive, and industrial heating systems. The 3/8"-16 UNC coarse thread with Class 6H fit ensures reliable engagement in high-vibration applications, while the 12 W/m-K thermal conductivity helps manage heat transfer at connection points. The external square drive design facilitates secure tool engagement in confined spaces, making these high-temperature nuts essential for maintenance-free operation in thermal processing equipment, exhaust systems, and power generation applications.

Specification Summary & Compliance

This square nut features precise 3/8"-16 UNC coarse threads with Class 6H thread fit tolerance for reliable engagement. Manufactured from carbon fiber with chopped construction, it delivers 17,000 psi tensile strength and withstands temperatures to 3630°F. The nut measures 3/4" width and 13/32" height with right-hand thread direction and external square drive. Fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards for industrial use.