304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size
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304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size

304/301 Stainless Steel Shim Sheet – Bright Polish, 0.02–0.45mm Thick, Cut-to-Size

HomeDIYer
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By HomeDIYer®

Price:
$23.65 USD
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In stock (500 units), ready to be shipped

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Description

304/301 Stainless Steel Shim Sheet — Precision Bright Polish for Tight-Tolerance Work

Whether you're a machinist shimming a bearing housing, a fabricator building a heat shield, or a hobbyist crafting a decorative panel, finding a flat, consistent, corrosion-resistant metal sheet in the exact thickness you need is rarely straightforward. Standard hardware store stock rarely goes below 0.5mm, leaving engineers and DIYers hunting for reliable ultra-thin stainless steel shim sheet stock that ships quickly and arrives flat.

Each piece is cut from 304 or 301 stainless steel with a bright polish (smooth, reflective) surface finish. Thickness ranges from 0.02mm (≈0.001") to 0.45mm (≈0.018"), with sheet dimensions available in widths of 100mm (≈3.9"), 200mm (≈7.9"), and 300mm (≈11.8"), and lengths of 300mm (≈11.8") or 1000mm (≈39.4"). Sold individually (1 Pcs per order) — select your exact size and grade from the variant options above.

Typical use cases include precision shimming for CNC machine alignment and bearing preload adjustment, thin backing plates for electronics enclosures and RF shielding, decorative inlay panels for furniture and architectural accents, and spring-temper strip stock for custom clips and retaining features (301 grade). The ultra-thin stainless steel sheet stock is also widely used in gasket fabrication and heat-resistant lining applications.

🔩 Grade Compatibility: 304 grade suits general fabrication, food equipment, and outdoor use. 301 grade is preferred for spring-temper, high-strength, or flex applications. Both grades conform to standard AISI/SAE stainless steel classifications.
⚠️ Verify your thickness before ordering. Ultra-thin sheets (0.02–0.05mm) are flexible and foil-like. If you need a rigid plate, select 0.2mm or thicker. Cut edges are sharp — handle with gloves.

✅ Key Features of These Stainless Steel Shim Sheets

  • 📏Ultra-Thin Range — Available from 0.02mm (≈0.001") to 0.45mm (≈0.018"), covering the full spectrum of shim stock thicknesses used in precision machining and fabrication.
  • ✨Bright Polish Finish — Smooth, reflective surface (comparable to 2B/BA finish) reduces friction in sliding applications and provides a clean appearance for decorative stainless steel sheet panels.
  • 🛡️Corrosion-Resistant Alloy — 304 grade resists rust in atmospheric, food-contact, and mildly acidic environments; 301 grade adds higher tensile strength for spring and flex applications.
  • ✂️Cuttable to Shape — Thin gauges (≤0.1mm) can be cut with metal shears or a rotary cutter; thicker gauges work with standard metal-cutting tools, making custom thin stainless steel plate fabrication straightforward.
  • 📐Multiple Sheet Sizes — Width × length combinations from 100×300mm up to 300×1000mm let you choose the closest standard size to minimize waste for your project.
  • 🌡️Heat & Chemical Resistance — Stainless steel maintains structural integrity at elevated temperatures, making these sheets suitable for heat shield liners, exhaust wraps, and oven-adjacent applications.

📐 Technical Specifications — Stainless Steel Shim Sheet

Material / Grade 304 Stainless Steel or 301 Stainless Steel (select via Types option)
Surface Finish Bright Polish (smooth, reflective; comparable to 2B/BA cold-rolled finish)
Thickness Range 0.02mm (≈0.001") – 0.45mm (≈0.018") — see variant options
Width Options 100mm (≈3.9") / 200mm (≈7.9") / 300mm (≈11.8")
Length Options 300mm (≈11.8") / 1000mm (≈39.4")
Packaging Quantity 1 Pcs per order
Tensile Strength (typical) 304: typically 515 MPa min; 301: typically 515–860 MPa depending on temper
Corrosion Resistance Good (304 superior to 301 in most atmospheric conditions)
Magnetic Properties 304: generally non-magnetic (annealed); 301: may exhibit slight magnetism when cold-worked
Applicable Standards AISI/SAE 304 / 301 (contact us to confirm specific mill certifications)
Recommended Uses Shimming, heat shields, decorative panels, spring stock, gaskets, RF shielding

❓ Frequently Asked Questions

How do I choose the right thickness for my application?

Thickness selection depends on the gap you need to fill or the flex you require. For shimming machine parts or filling small gaps, thinner sheets (0.02–0.05mm) are typically used. For structural backing plates or heat shields, thicker options (0.2–0.45mm) are generally more appropriate. Measure the gap with a feeler gauge before ordering. As a quick reference: 0.05mm ≈ 0.002" (2 thou), 0.10mm ≈ 0.004", 0.20mm ≈ 0.008", 0.30mm ≈ 0.012".

What is the difference between 304 and 301 stainless steel?

304 stainless steel offers excellent corrosion resistance and is the most widely used grade for general-purpose applications including food-contact environments. 301 stainless steel has slightly higher carbon content, making it harder and more suitable for spring-temper or high-strength applications where some springback is needed. If you're unsure, 304 is the safer default for most DIY and fabrication projects.

Can these sheets be used outdoors or in humid environments?

Yes. Both 304 and 301 stainless steel are corrosion-resistant and generally suitable for outdoor or humid environments. 304 grade in particular performs well in most atmospheric conditions. For marine or highly chloride-rich environments, a higher grade such as 316 is typically recommended. Surface scratches may reduce local corrosion resistance, so handle the bright polish finish carefully.

Can I cut these sheets to a custom size?

Yes. Thin stainless steel shim sheets can generally be cut with metal shears, a rotary cutter, or a laser cutter depending on thickness. Sheets 0.1mm and thinner are typically flexible enough to score and snap cleanly. Thicker sheets (0.3mm+) may require metal-cutting tools or a bench shear. Always wear cut-resistant gloves — sheared stainless edges are very sharp.

What does 'bright polish' finish mean, and does it affect performance?

Bright polish (similar to 2B or BA finish) refers to a smooth, reflective surface achieved through cold rolling and annealing. It provides a clean, mirror-like appearance and is easier to wipe clean than brushed finishes. In functional applications, the smooth surface reduces friction in sliding or mating interfaces. It does not significantly affect the mechanical or corrosion properties of the base alloy.

How do I convert mm thickness to inches (thou)?

Divide mm by 25.4 to get inches. Common conversions for this product range: 0.05mm ≈ 0.002" (2 thou), 0.10mm ≈ 0.004", 0.20mm ≈ 0.008", 0.30mm ≈ 0.012", 0.40mm ≈ 0.016", 0.45mm ≈ 0.018". In the US machining trade, these are often called "shim stock" and referenced in thousandths of an inch.

Is 304 stainless steel food-safe for kitchen or food-processing use?

304 stainless steel is generally considered food-safe and is widely used in commercial kitchen equipment, food processing machinery, and appliance manufacturing. 301 grade is not typically recommended for direct food contact. Always verify compliance with your local food safety regulations (e.g., FDA, NSF) for your specific application before use.

🛒 Select your size, grade, and quantity above, then add to cart — ships from our US warehouse.

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