S-2995T901 5/8"-11 Hex Nuts

Key Features & Benefits at a Glance

• Paired threading versatility - Includes both left-hand and right-hand threaded jam nuts for bidirectional locking applications and turnbuckle assemblies
• Reliable Grade 2 steel construction - Provides excellent strength-to-weight ratio and dependable performance in industrial environments
• Precision UNC coarse threading - 5/8"-11 thread configuration with Class 2B fit ensures smooth engagement and consistent clamping force
• Standard external hex drive design - Offers universal tool compatibility and straightforward installation with common wrench sets
• Comprehensive regulatory compliance - Meets both REACH and RoHS 3 environmental standards for safe industrial use
• Optimized dimensional profile - 15/16" width and 25/64" height provide balanced contact surface while maintaining compact installation footprint
• Enhanced vibration resistance - Jam nut configuration creates secure locking action against primary fasteners in high-vibration applications

Professional Applications & Engineering Value

This Grade 2 steel hex jam nut pair delivers critical engineering solutions for industrial assemblies requiring bidirectional locking capability. The combination of left-hand and right-hand 5/8"-11 UNC coarse threads makes these nuts particularly valuable for turnbuckle applications and machinery where counter-rotational forces are present. The Class 2B thread fit ensures consistent engagement with mating components while the standard external hex drive maintains compatibility with existing tooling. Manufactured from durable steel, these jam nuts provide reliable secondary locking in high-vibration environments, preventing loosening in mechanical systems, construction equipment, and industrial machinery. The coarse thread design offers faster installation and reduced cross-threading risk compared to fine-thread alternatives.

Specification Summary & Compliance

This hex jam nut pair features precision 5/8"-11 UNC coarse threads with Class 2B thread fit per standard inch system specifications. The nuts measure 15/16" across flats with 25/64" height and conform to Grade 2 strength classification. Manufacturing and material compliance includes full adherence to REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring regulatory compliance for industrial applications worldwide.