McMaster

Corrosion-Resistant 18-8 Stainless Steel Hex Nut | 3/8"-16 Thread Size 91845A031

$0.15
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FAST SHIPPING Nationwide delivery options
CONTRACTOR PRICING Savings on qualifying orders
EXPERT SUPPORT Talk to real product specialists
CONTRACTOR-GRADE BUILD Built for demanding professional work.
RELIABLE COMPONENTS Configured for dependable performance.
JOB-READY PERFORMANCE Designed to help crews work efficiently.
PRO-GRADE CONFIGURATION Flexible equipment and accessory options.
EXPERT SUPPORT Help before and after the sale.

OVERVIEW & BENEFITS

These Corrosion-Resistant 18-8 Stainless Steel Hex Nuts in 3/8"-16 thread size are built for strength, reliability, and long-term durability in demanding environments. Made from high-quality 18-8 stainless steel, they provide outstanding resistance to rust, corrosion, moisture, and chemical exposure—making them ideal for outdoor applications, marine use, industrial equipment, construction, and pressure washing or softwash system builds.

With precision-cut threads and a standard hex profile, these nuts ensure secure fastening and compatibility with any 3/8"-16 threaded bolt or stud.

Key Features

  • Made from corrosion-resistant 18-8 stainless steel

  • 3/8"-16 standard coarse thread size

  • Excellent resistance to rust, chemicals, and outdoor exposure

  • Strong, long-lasting fastening for industrial or mechanical use

  • Ideal for fabrication, equipment assembly, and rig construction

Product Specs

  • Material: 18-8 Stainless Steel (AISI 304)

  • Thread Size: 3/8"-16 (Coarse thread)

  • Nut Type: Standard hex nut

  • Standards: ANSI/ASME B18.2.2 compliant

  • Applications: Pressure washer rigs, softwash skids, metal fabrication, construction hardware, automotive repair, marine equipment, industrial machinery

Perfect For

  • Pressure washing and softwash system hardware

  • Trailer and skid builds

  • Industrial and mechanical assembly

  • Marine, outdoor, and corrosive environments

  • Fabrication shops and maintenance departments

These stainless steel hex nuts deliver dependable fastening strength with superior corrosion resistance—perfect for demanding environments.

VERIFIED CUSTOMER FEEDBACK

WHAT PROS ARE SAYING

PRODUCT SUPPORT

FREQUENTLY ASKED QUESTIONS

Is this product ready to use out of the box?

Setup requirements vary by product. Review the product description and included-items section, or contact our team before ordering for configuration details.

Can I finance this product?

Financing options may be available for qualified buyers. Use the financing link on this page to review current options.

What warranty applies?

Warranty coverage varies by manufacturer and product. Review the product details or contact support for the coverage associated with this item.

Do you offer product support?

Yes. Contact the Cigar City Softwash team for product-selection, setup, parts, and troubleshooting guidance.

NEED HELP CHOOSING?

Our team can help you select the right equipment, parts, and accessories.

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FLEXIBLE OPTIONS

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