S-94650A411 1/4"-20 x 1" Elevator Bolts

Elevator Bolts

0855FA00166 Elevator Bolts
0855FA00166 Elevator Bolts

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

Part No.
Part No. 0855FA00166
Equivalent to mcmaster :
94650A411

Basic Information

System of Measurement Inch
Elevator Bolt Style Number No. 1
Includes Nut

Head Parameters

Fastener Head Type Flat
Head Diameter 31/32"
Head Height 3/32"
Flat Head Profile Wide

Neck & Shank Parameters

Neck Type Square
Neck Length 0.16"
Neck Width 0.26"

Dimension Parameters

Length 1"
Screw Diameter 0.25"

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Unified Standard Class 2A

Material & Strength Parameters

Material Steel
Fastener Strength Grade/Class SAE Grade 5
Fastener Strength Rating Medium
Hardness Rockwell C25
Tensile Strength 120000 psi

Finish & Compliance Parameters

Finish Zinc Yellow-Chromate 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 and SAE Grade 5 rating, ideal for heavy-duty industrial applications.
  • Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh environments.
  • Secure anti-rotation design with a square neck that prevents loosening under vibration and dynamic loads.
  • Reliable thread engagement through fully threaded UNC coarse threads and Class 2A fit for easy assembly and consistent performance.
  • Enhanced durability from Rockwell C25 hardness, resisting wear and deformation in demanding use.
  • Wide flat head profile for stable seating and distributed pressure, reducing surface damage.
  • Compliance with safety standards including REACH and RoHS 3, ensuring environmental and regulatory suitability.

Professional Applications & Engineering Value

This Grade 5 steel elevator bolt is engineered to address critical challenges in material handling and machinery assembly. The square neck design locks securely into mating parts, preventing rotation that can compromise joint integrity in conveyor systems, elevator platforms, and industrial equipment. Its fully threaded 1/4-20 UNC coarse thread ensures rapid installation and high clamp force, while the zinc yellow-chromate finish provides a robust barrier against rust and chemical exposure, reducing maintenance costs. With a flat head profile and 120,000 psi tensile strength, it delivers reliable performance in high-stress applications, from manufacturing to logistics, ensuring long-term operational safety and efficiency.

Specification Summary & Compliance

This elevator bolt adheres to Unified Standard Class 2A thread fit and UNC coarse thread specifications, ensuring dimensional accuracy and interchangeability. It meets SAE Grade 5 strength standards and is manufactured with compliance to REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, supporting sustainable and safe industrial practices.

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