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Our 304 Stainless Steel Nuts are engineered for secure, durable fastening in a wide range of environments, from general industrial use to marine and food-grade applications. Manufactured with high-quality stainless steel 304, these nuts offer excellent corrosion resistance, strength, and long-lasting performance even under extreme conditions.
Whether you're sourcing 304 stainless steel hex nuts, lock nuts, wing nuts, or custom CNC-machined 304 SS nuts, our selection ensures reliable fastening solutions tailored to your project needs.
Material Advantages – Why 304 Stainless Steel?
304 stainless steel is the most commonly used austenitic stainless steel, known for its versatility and exceptional corrosion resistance. It is widely used across many Industries for its balance of strength, weldability, and affordability.
Key Benefits:
Corrosion Resistance – Excellent performance in humid, chemical, or marine environments
Non-Magnetic (in annealed condition) – Suitable for electronics or magnetic-sensitive applications
High Strength – Ideal for structural fastening in machinery, construction, and transport
Hygienic & Non-Toxic – Safe for use in food processing and medical equipment
Long Service Life – Withstands environmental and mechanical wear
These properties make 304 SS nuts ideal for both indoor and outdoor applications requiring strong, rust-resistant fasteners.
Product Types & Specifications
We offer a complete range of 304 stainless steel nuts, each machined to meet international standards (DIN, ISO, ANSI):
Common Types:
304 Stainless Steel Hex Nut – The most versatile fastening nut for industrial and structural applications
304 SS Lock Nut – Anti-vibration and self-locking features for machinery and automotive use
304 Stainless Steel Wing Nut – Tool-free tightening for manual applications and quick assembly
304 Stainless Steel Flange Nut – Integrated washer base for added bearing surface and load distribution
304 SS Cap Nut / Dome Nut – Aesthetic finish and protection of bolt ends
304 Stainless Square Nut – Traditional four-sided design for wood or metal joints
Custom Specifications:
Thread Types: Metric (M3–M24), UNC/UNF
Finish Options: Plain, passivated, polished, pickled
Tolerances: As per drawing or ISO standards
Packaging: Bulk bags, small boxes, blister packaging (customizable)
CNC Machining & Quality Assurance
For customers with unique fastening requirements, we provide precision CNC machined 304 stainless steel nuts, tailored to custom drawings or specifications. Our machining Capabilities include:
Thread cutting and forming (internal)
Hex, square, or custom shapes via CNC milling
Surface finishing and polishing
ISO 9001:2015 quality control system
Salt spray and hardness testing available
All our OEM 304 stainless steel nuts are produced under rigorous quality control standards to ensure dimensional accuracy and reliable thread performance.
Application Fields
Due to their strength and corrosion resistance, 304 stainless steel nuts are widely used in the following industries:
Construction Hardware – For joining beams, structures, and supports
Automotive & Transport – Heavy-duty 304 SS lock nuts for vibration-prone systems
Marine Hardware – Marine-grade 304 stainless nuts for boats, docks, and offshore equipment
Food & Beverage Processing – Hygienic-grade 304 nuts for equipment that meets FDA requirements
Electrical Enclosures – Secure and rust-proof fastening of panels and fixtures
DIY and Furniture – 304 stainless wing nuts for easy assembly and disassembly
Customization & OEM Services
As an experienced OEM custom 304 stainless steel nut supplier, we offer:
Customized dimensions and threading
Engraved or embossed logos
Bulk packaging with private labels
Free samples and rapid prototyping
Low MOQ orders supported
Drawings accepted in DWG / STEP / PDF formats
Our dedicated engineering team supports customers through every stage – from initial design to mass production.
Product Highlights
Material: AISI 304 / SUS304 Stainless Steel
Thread Sizes: M3 to M24, UNC, UNF
Standards: DIN 934, DIN 985, ISO 4032, etc.
Surface Finish: Natural, Passivated, Polished
Process: Cold forming / CNC machining
Application: Automotive, Construction, Marine, Food Equipment
Frequently Asked Questions
Q1: What is the difference between 304 and 316 stainless steel nuts?
A1: 316 offers higher corrosion resistance (especially in saltwater), but 304 is more cost-effective and widely used in general industrial settings.
Q2: Can I request custom sizes or threading types?
A2: Yes, we fully support custom thread pitches, diameters, and shapes for special applications.
Q3: Are your 304 stainless steel nuts food-grade?
A3: Yes, 304 SS is non-toxic and safe for use in food machinery and clean environments.
Q4: Do you offer small order quantities?
A4: Absolutely. We support small-batch production for samples, prototyping, and special projects.
Q5: Can these nuts withstand outdoor environments?
A5: Yes, 304 stainless steel is weather-resistant and ideal for outdoor use, especially with passivation.
