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Description
S04020-16 – SCAG 5/8"-18 UNF Zinc Hex Nut (Genuine OEM Part)
The SCAG S04020-16 is a genuine OEM 5/8"-18 UNF zinc-plated hex nut engineered to provide secure fastening in a variety of SCAG commercial lawn mower assemblies. Manufactured to SCAG's exact specifications, this fine-thread hex nut delivers dependable clamping force, helping maintain critical components under continuous vibration and heavy-duty mowing conditions.
Constructed from durable high-strength steel with a corrosion-resistant zinc finish, the S04020-16 offers long service life, reliable thread engagement, and precise OEM fit for professional landscaping equipment.
Product Details
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Manufacturer Part Number: S04020-16
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Brand: SCAG
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Part Type: Hex Nut
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Thread Size: 5/8"-18 UNF (Fine Thread)
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Material: High-Strength Steel
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Finish: Zinc-Plated
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OEM Status: Genuine SCAG OEM Part
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Installation: Direct OEM Replacement
Replaces Previous Part Number
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PX04020-16
Key Features
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Genuine SCAG OEM hardware
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Precision-machined 5/8"-18 UNF fine threads
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High-strength steel construction
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Zinc-plated to resist corrosion and rust
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Provides secure fastening in high-vibration applications
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Manufactured for long-lasting commercial performance
Function
The SCAG S04020-16 Hex Nut secures threaded shafts, bolts, and mounting hardware throughout compatible SCAG mower assemblies. Its fine-thread design provides increased holding strength and reliable clamping force, making it ideal for demanding commercial mowing applications.
Who Is This For?
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Commercial landscapers
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Lawn maintenance professionals
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SCAG mower owners
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Equipment repair technicians
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Fleet maintenance departments
Recommended Property Size
Ideal for residential, estate, commercial, municipal, golf course, sports field, and professional turf maintenance equipment using compatible SCAG components.
Pros
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Genuine SCAG OEM quality
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Exact factory thread specifications
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Heavy-duty steel construction
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Corrosion-resistant zinc finish
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Reliable long-term fastening performance
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Direct OEM replacement
Cons
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Fits only components requiring 5/8"-18 UNF fine-thread hardware
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Not interchangeable with coarse-thread nuts
Comparison – Genuine SCAG OEM vs Aftermarket
SCAG S04020-16 OEM
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Exact factory dimensions
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Precision thread tolerances
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Superior corrosion resistance
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Built for commercial-duty equipment
Aftermarket Alternatives
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Thread tolerances may vary
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Lower-quality materials
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Reduced long-term durability under heavy use
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies genuine SCAG OEM replacement parts trusted by commercial landscapers and equipment owners.
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Genuine SCAG OEM parts
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Authorized SCAG dealer
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Fast nationwide shipping
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Competitive pricing
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Expert parts support
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Extensive OEM inventory
