S-91660A130 1/4"-20 x 4 3/8" T-Bolts
T-Bolts
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black oxide finish for extended service life in demanding environments
- Superior holding power with 70,000 psi tensile strength and Rockwell C45 hardness for heavy-duty applications
- Optimized load distribution through 2 1/2" wide tee head design for secure fastening in T-slots
- Quick installation and adjustment with coarse 1/4"-20 UNC threading and right-hand thread direction
- Precise thread engagement with Unified Standard Class 2A fit ensuring consistent performance
- Versatile partial threading (3/4" threaded section) allowing flexibility in various mounting scenarios
- Regulatory compliance assurance meeting REACH and RoHS 3 standards for global industrial use
Professional Applications & Engineering Value
This black oxide steel T-bolt delivers exceptional engineering value in industrial clamping systems, jig and fixture applications, and machinery assembly. The collar-type T-bolt design with 1/2" collar length provides superior stability when engaged in T-slots, preventing rotation during tightening operations. The partially threaded configuration (3/4" thread length on a 4 3/8" overall length) allows unthreaded sections to act as precision guides or bearing surfaces. The UNC coarse threading ensures rapid installation and removal while maintaining 70,000 psi tensile strength for demanding applications. The black oxide finish on hardened steel offers both corrosion protection and reduced galling, making these industrial tee bolts ideal for manufacturing equipment, woodworking machinery, and automotive fixtures where reliability and repeated use are critical.
Specification Summary & Compliance
This T-bolt features Unified Standard Class 2A thread fit with 1/4"-20 UNC coarse threading and right-hand direction. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards. The fastener maintains precise dimensional tolerances with 2 1/2" head width, 3/8" head thickness, and 4 3/8" total length. Material specifications include Rockwell C45 hardness and 70,000 psi tensile strength for consistent performance in industrial applications.
