S-93298A109 10-32 Flange Nuts

Flange Nuts

1220FA00004 Flange Nuts
1220FA00004 Flange Nuts

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

Part No.
Part No. 1220FA00004
Equivalent to mcmaster :
93298A109

Basic Information

System of Measurement Inch
Nut Type Flange, Locknut, Hex

Dimension Parameters

Width 3/8"
Height 17/64"

Thread Parameters

Thread Type UNF
Thread Size 10-32
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 1/2"
Flange Thickness 0.03"

Material & Strength Parameters

Material Zinc-Plated Steel
Strength Class Grade F

Temperature & Environment Parameters

Insert Maximum Temperature 250°F

Finish & Compliance Parameters

Locking Type Nylon Insert
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior vibration resistance through the nylon insert that maintains locking force under dynamic loads, reducing maintenance needs.
  • Enhanced load distribution with the integrated 1/2" flange, minimizing surface damage and improving joint integrity.
  • Reliable high-temperature performance with the nylon insert rated up to 250°F, ensuring consistent locking in demanding environments.
  • Corrosion protection from zinc plating, extending service life in industrial and outdoor settings.
  • Precise fine thread engagement with 10-32 UNF Class 2B threads, providing secure fastening and reducing the risk of cross-threading.
  • Easy installation and removal using standard external hex drive tools, saving time during assembly and disassembly.
  • High strength reliability meeting Grade F specifications, suitable for critical applications requiring durable fastening solutions.

Professional Applications & Engineering Value

This 10-32 UNF nylon insert flange lock nut is engineered to address common industrial challenges such as vibration-induced loosening and thermal cycling. The zinc-plated steel construction offers excellent corrosion resistance, while the nylon insert provides consistent locking force up to 250°F, making it ideal for automotive, machinery, and electrical enclosures. The integrated flange design distributes clamping pressure evenly, protecting sensitive surfaces and reducing the need for additional washers. With fine threads and Class 2B fit, it ensures precise alignment and reliable performance in high-stress applications, enhancing overall assembly durability and safety.

Specification Summary & Compliance

This nut features 10-32 UNF fine threads with Class 2B thread fit for accurate engagement, and complies with industry standards for Grade F strength. It meets general requirements for dimensional consistency and is manufactured using materials that adhere to RoHS and REACH directives, ensuring environmental and safety compliance in industrial use.

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