013-9002-00 - Bad Boy Mower Parts
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013-9002-00 – 5/16-18 Hex Flange Nuts Zinc – /Serrations

Key Features of Bad Boy Mower 013-9002-00 – 5/16-18 Hex Flange Nuts Zinc (w/ Serrations)

  • OEM Replacement Hardware: Genuine Bad Boy flange nuts designed for 5/16-18 thread applications.
  • Serrated Flange Design: Provides enhanced grip to resist loosening under vibration.
  • Integrated Flange Base: Evenly distributes load and eliminates the need for a washer.
  • High-Strength Steel Construction: Ensures maximum durability and long-lasting torque retention.
  • Zinc-Plated Finish: Protects against corrosion, rust, and outdoor exposure.
  • Precision Threading: Guarantees smooth installation and reliable engagement with OEM bolts.
  • Vibration Resistant: Ideal for high-stress areas such as decks, frames, and engine mounts.
  • See Models Used On below for more detail.

  • SKU:

    013-9002-00

$2.99
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Bad Boy Mower 013-9002-00 – 5/16-18 Hex Flange Nuts Zinc (w/ Serrations)

The Bad Boy Mower 013-9002-00 – 5/16-18 Hex Flange Nuts Zinc (w/ Serrations) are genuine OEM fasteners designed to provide a secure, vibration-resistant connection across a variety of mower assemblies. These nuts feature integrated serrations on the flange base, which grip the mating surface to prevent loosening caused by vibration, torque, or heavy-duty operation.

Constructed from high-strength steel and finished with a zinc-plated coating, the 013-9002-00 offers superior corrosion resistance and long-lasting performance in outdoor environments. The built-in flange distributes load evenly across the surface area, eliminating the need for washers and reducing hardware stress on mounting points.

The serrated design enhances locking capability by creating a positive grip on the surface material—ideal for use in frame, deck, and engine mount applications. Each nut is precision-threaded with a 5/16-18 pitch, ensuring smooth engagement and consistent torque retention with OEM bolts and studs.

Aftermarket flange nuts may not match the same thread precision or surface-gripping performance, which can lead to hardware loosening over time. The Bad Boy OEM 013-9002-00 Hex Flange Nuts deliver factory-grade reliability, strength, and corrosion protection, keeping your mower components secure and properly aligned.

At BadBoyMowerParts.com, we stock a complete range of OEM nuts, bolts, washers, and fasteners manufactured to Bad Boy’s exact specifications. With free shipping on orders over $100, replacing worn hardware like the 013-9002-00 is simple, affordable, and ensures long-term mower performance.

Models Used On

(Click Link For Diagram)

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010