S-94902A109 3/4"-16 Flange Nuts

Flange Nuts

1230FA00039 Flange Nuts
1230FA00039 Flange Nuts

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

Part No.
Part No. 1230FA00039
Equivalent to mcmaster :
94902A109

Basic Information

System of Measurement Inch
Nut Type Flange, Hex

Dimension Parameters

Width 1 1/8"
Height 21/32"

Thread Parameters

Thread Type UNF
Thread Size 3/4"-16
Thread Direction Right Hand
Thread Spacing Fine
Thread Fit Class 2B

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Flange Parameters

Flange Diameter 1 1/2"
Flange Thickness 0.16"

Material & Strength Parameters

Material Black-Phosphate Steel
Strength Class Grade 8

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional strength and reliability with Grade 8 classification, ideal for high-stress industrial assemblies and heavy machinery.
  • Superior corrosion resistance due to the black-phosphate steel coating, extending service life in harsh environments.
  • Enhanced load distribution and vibration resistance from the 1-1/2" flange diameter, reducing the risk of loosening under dynamic loads.
  • Precise and secure fastening with 3/4"-16 UNF fine threads and Class 2B thread fit, ensuring tight, reliable connections.
  • Easy installation and removal using standard wrenches on the external hex drive, saving time in maintenance and assembly.
  • Compliance with stringent environmental standards including REACH and RoHS 3, making it safe for regulated industries.
  • Durable construction with a 0.16" flange thickness, providing long-term performance in demanding applications.

Professional Applications & Engineering Value

This Grade 8 flange nut is engineered to address common industrial challenges such as joint failure and corrosion in heavy-duty equipment. Made from black-phosphate steel, it offers excellent protection against rust and wear, making it suitable for automotive, construction, and machinery sectors where exposure to moisture and chemicals is frequent. The 3/4"-16 UNF fine threads and Class 2B thread fit ensure precise engagement, minimizing the risk of stripping and providing consistent clamping force. The integrated flange design eliminates the need for separate washers, distributing pressure evenly to prevent surface damage and maintain integrity under high vibration. Ideal for industrial applications requiring reliable, long-lasting fasteners, this nut enhances assembly efficiency and reduces maintenance downtime.

Specification Summary & Compliance

This flange nut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy. It meets REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) compliance, ensuring environmental safety. Manufactured to Grade 8 strength specifications, it guarantees high tensile performance and durability in industrial use.

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