S-90630A135 3/4"-10 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the durable nylon insert, ensuring long-term joint security in high-stress environments.
• High tensile strength with Grade 8 steel construction, providing reliable performance in heavy-duty and industrial applications.
• Wide temperature tolerance up to 220°F, maintaining locking integrity in various operational conditions.
• Precise coarse threading (3/4"-10 UNC) for quick assembly and reduced cross-threading risk, enhancing installation efficiency.
• Secure Class 2B thread fit offering consistent engagement and optimal clamping force for critical connections.
• External hex drive design allows for easy installation and removal with standard tools, minimizing downtime.
• Compliance with REACH and RoHS 3 standards ensures environmental safety and meets global regulatory requirements for industrial use.

Professional Applications & Engineering Value

This Grade 8 steel nylon insert locknut is engineered to address common challenges in industrial fastening, such as loosening under vibration and thermal stress. The nylon insert creates consistent friction against the bolt threads, effectively resisting shock and dynamic loads in machinery, automotive, and construction equipment. Its UNC coarse threads facilitate rapid installation while the external hex drive ensures compatibility with standard wrenches, reducing assembly time. Built from high-strength steel, it offers durability in demanding applications where reliability is critical, preventing failures and maintenance costs. The design supports secure fastening in systems exposed to temperatures up to 220°F, making it ideal for engines, heavy vehicles, and industrial assemblies requiring vibration-resistant solutions.

Specification Summary & Compliance

This locknut features a 3/4"-10 UNC coarse thread with a Class 2B thread fit for precise dimensional accuracy and reliable engagement. Manufactured to Grade 8 strength standards, it ensures high load-bearing capacity. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, confirming adherence to environmental and safety requirements. Dimensions include a width of 1 1/16" and height of 7/8", with a right-hand thread direction for standard applications.