S-91660A180 5/8"-11 x 6 3/8" T-Bolts

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity - With a tensile strength of 70,000 psi, this T-bolt reliably handles high-stress applications without failure.
• Superior Corrosion Resistance - The Black Oxide finish provides a durable protective layer, extending service life in demanding industrial environments.
• Optimized for Secure Fastening - The 3 1/2" wide Tee head and collar design offer excellent grip and resistance to rotation during tightening.
• Precision Thread Engagement - UNC coarse threading and Class 2A fit ensure easy, reliable assembly and consistent performance in high-vibration settings.
• Enhanced Durability - A Rockwell C45 hardness rating provides excellent wear resistance, maintaining structural integrity over repeated use.
• Versatile Installation - The partially threaded and right-hand design allows for flexible positioning and straightforward manual or tool-driven installation.
• Compliant with Global Standards - Meets REACH and RoHS 3 requirements, ensuring safe use in regulated markets and eco-conscious industries.

Professional Applications & Engineering Value

This high-strength steel T-bolt is engineered to address critical challenges in heavy-duty clamping, fixturing, and machinery assembly. The 5/8"-11 UNC thread with coarse spacing ensures rapid installation and robust holding power, even in high-vibration environments like industrial presses, woodworking equipment, and automotive jigs. The Black Oxide finish significantly enhances corrosion resistance, reducing maintenance needs in humid or exposed conditions. With a 6 3/8" length and partially threaded shank, it offers flexibility for applications requiring adjustable grip or clearance. The Tee head with collar provides superior anti-rotation stability, making it ideal for T-slotted framing systems and structural frameworks where reliability is paramount. This bolt delivers consistent performance, reducing downtime and replacement costs in demanding industrial applications.

Specification Summary & Compliance

This T-bolt adheres to Unified Standard Class 2A thread fit for precise dimensional accuracy and reliable interchangeability. It features a 5/8"-11 UNC coarse thread, right-hand direction, and partial threading with a 3/4" thread length. The product is manufactured from high-grade steel and is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets stringent environmental and safety standards for industrial use worldwide.