S-91285A116 1/2"-20 x 3 3/4" T-Bolts

T-Bolts

0857FA00006 T-Bolts
0857FA00006 T-Bolts

Image may differ from product. See technical specification for details.

Part No.
Part No. 0857FA00006
Equivalent to mcmaster :
91285A116

Basic Information

System of Measurement Inch
Application General Purpose

Head Parameters

Fastener Head Type Tee
Head Thickness 1/2"
Head Width 2"

Dimension Parameters

Length 3 3/4"
Screw Diameter 0.5"

Thread Parameters

Thread Type UNF
Thread Size 1/2"-20
Threading Partially Threaded
Thread Direction Right Hand
Thread Spacing Fine
Thread Fit Unified Standard Class 2A
Thread Length 2 1/2"

Material & Strength Parameters

Material Steel
Hardness Rockwell C25
Tensile Strength 120000 psi

Finish & Compliance Parameters

Finish Zinc Plated
REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
  • Superior corrosion resistance provided by zinc plating, extending service life in various industrial environments
  • Precision fine threading with 1/2"-20 UNF and Class 2A fit ensures secure, vibration-resistant fastening
  • Optimized thread engagement through partial threading design with 2 1/2" thread length for efficient installation
  • Enhanced torque transmission from the 2" wide tee head design for easier installation and removal
  • Consistent mechanical properties with Rockwell C25 hardness for dependable performance under stress
  • Regulatory compliance assurance meeting both RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This high-strength T-bolt delivers exceptional engineering value through its steel construction and zinc plated finish, specifically addressing industrial fastening challenges where corrosion resistance and structural integrity are paramount. The 1/2"-20 UNF fine threading with Class 2A fit provides superior vibration resistance in machinery, equipment assembly, and structural applications. The partially threaded design with 2 1/2" thread length optimizes clamping force distribution while the substantial 2" tee head facilitates quick installation and removal. Engineered for general purpose industrial applications, this fastener combines the reliability of UNF fine threads with the durability of zinc plating to solve common issues of loosening under dynamic loads and environmental degradation.

Specification Summary & Compliance

This T-bolt features precise Unified Standard Class 2A thread fit with 1/2"-20 UNF fine threading and right-hand thread direction. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for industrial use. Dimensional specifications include 3 3/4" length, 0.5" screw diameter, 2" head width, and 1/2" head thickness, maintaining consistent quality standards for reliable performance across applications.

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