UNC 6 - 32 Anodized Aluminum Knurled Thumb Screws — 10mm & 20mm, 10 Colors - HomeDIYer

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UNC 6#-32 Anodized Aluminum Knurled Thumb Screws — 10mm & 20mm, 10 Colors

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Size:: 6#-32 UNC * 10mm

Color:: Dark Red

Packing Qty: 1pcs

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$7.37 USD

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In stock (500 units), ready to be shipped

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UNC 6#-32 Anodized Aluminum Knurled Thumb Screws — Two Lengths, 10 Colors, Tool-Free Install

When you need to open an electronics enclosure, adjust a panel on a CNC machine, or swap a cover on an RC car chassis, the last thing you want is to hunt for a screwdriver. These UNC 6#-32 anodized aluminum knurled thumb screws give makers, hobbyists, RC builders, and light-assembly technicians fast, repeatable, tool-free access — with two shank lengths to match a wider range of panel thicknesses than a single-length option can cover.

Each screw is machined from aluminum alloy with an anodized finish and features a knurled head for hand-tightening. Two shank lengths are available: 10mm (≈3/8") for standard panel thicknesses and 20mm (≈25/32") for thicker assemblies or deeper thread engagement. Ten anodized colors are offered — Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, and Orange — and screws are sold in packs of 1, 5, or 10 pieces.

Typical use cases include securing access panels on electronics enclosures and DIY project boxes where tool-free hand access is needed repeatedly, fastening body panels and battery covers on RC cars and drone frames where the 20mm length handles thicker chassis sections, and color-coding fastener positions across multi-panel assemblies so disassembly is faster and less error-prone during maintenance or iteration.

🔩 Thread Compatibility: UNC 6#-32 — fits any standard UNC 6#-32 nut, threaded insert, or tapped hole. Available in 10mm (≈3/8") and 20mm (≈25/32") shank lengths. Verify your panel thickness and mating thread depth before ordering.

✅ Key Features of These UNC 6#-32 Anodized Aluminum Knurled Thumb Screws

📏Two Shank Lengths — The 10mm (≈3/8") option suits standard panel thicknesses; the 20mm (≈25/32") option handles thicker assemblies or applications where extra thread engagement is needed — giving you more flexibility than a single-length thumb screw.
✋Knurled Head for Tool-Free Use — The knurled head provides a secure finger grip for hand-tightening and loosening, making it practical for panels and enclosures that need frequent access without reaching for a screwdriver.
🎨10 Anodized Color Options — Choose from Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, or Orange. Anodized finish integrates into the aluminum surface and generally resists chipping and peeling under normal use.
⚖️Lightweight Aluminum Construction — Aluminum alloy keeps fastener weight minimal, a practical advantage in weight-sensitive builds like RC vehicles, drones, and portable enclosures where every gram matters.
🔧UNC 6#-32 Standard Thread — One of the most widely used thread standards in the US, ensuring broad compatibility with off-the-shelf nuts, inserts, and tapped holes in American-spec hardware and electronics enclosures.
📦Flexible Pack Quantities — Available in 1, 5, or 10-piece packs so you can order exactly what your project requires, whether you need a single replacement or a full set for a new build.

📐 Technical Specifications — UNC 6#-32 Anodized Aluminum Knurled Thumb Screws

Thread Standard	UNC 6#-32
Thread Diameter	#6 (≈3.5mm / 0.138")
Thread Pitch	32 TPI (threads per inch)
Available Shank Lengths	10mm (≈3/8"), 20mm (≈25/32")
Head Style	Knurled head (hand-tighten)
Head Diameter	See variant options
Material	Aluminum alloy
Surface Finish	Anodized
Available Colors	Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, Orange
Pack Quantities	1, 5, 10 PCS
Drive Type	Hand-tighten (no tool required)
Recommended Use	Light-duty panel fastening, electronics enclosures, RC builds, DIY project boxes

⚠️ Note: These are aluminum thumb screws designed for hand-tightening and light-duty applications. They are not intended for high-torque or structural load-bearing use. Verify your panel thickness and select the appropriate shank length before ordering.

❓ Frequently Asked Questions

How do I choose between the 10mm and 20mm length?

Match the shank length to your panel stack-up. The 10mm (≈3/8") shank is generally suited for panels in the 5–8mm thickness range. The 20mm (≈25/32") shank works for thicker assemblies or when you need extra thread engagement — for example, passing through a panel and threading into a deeper insert or nut. Always verify your mating thread depth before ordering.

What thread standard is UNC 6#-32, and what will it fit?

UNC 6#-32 is Unified National Coarse thread, #6 diameter (≈3.5mm / 0.138") at 32 threads per inch. It is one of the most common thread standards in the United States and is compatible with any standard UNC 6#-32 nut, threaded insert, or tapped hole. Always verify your mating thread specification before ordering.

How much torque or clamping force can these handle?

These are aluminum thumb screws designed for hand-tightening and light-duty panel fastening. Typical hand-tightening torque for a #6-32 aluminum screw is generally in the range of 2–5 in-lbs. For higher load requirements or structural connections, a steel fastener is recommended.

Can these be used outdoors or in humid environments?

The anodized aluminum finish provides moderate corrosion resistance, making these screws generally suitable for light outdoor or humid-environment use. For prolonged saltwater exposure or heavy-weather conditions, a stainless steel alternative is typically recommended. For most indoor and sheltered outdoor applications, these should perform well.

Does the 20mm version work for thicker panels or stacked materials?

Yes. The 20mm (≈25/32") shank is generally suited for thicker panel assemblies, stacked materials, or applications where the screw needs to pass through a panel and engage a deeper nut or insert. It provides more thread engagement than the 10mm version, which can be useful when the mating hardware is recessed or when extra grip is needed.

Do the anodized colors affect performance or durability?

No. The colors are achieved through anodizing, an electrochemical process that integrates into the aluminum surface rather than sitting on top like paint. The finish generally does not chip or peel under normal use and does not affect the screw's mechanical performance. Color-coding can also be useful for organizing or identifying different fastener positions across a build.

Can I use these without any tools?

Yes. The knurled head is specifically designed for tool-free, hand-tightening. The knurled grip surface provides enough friction for finger-tightening in most panel and enclosure applications. If you need a tighter hold than hand-tightening allows, these screws may not be the right choice for that specific application.

What quantity pack should I order?

Count the fastener positions in your project and order accordingly. A 1-piece pack is useful for a single replacement. A 5-piece pack suits small builds or enclosures with a few access points. A 10-piece pack is cost-effective for larger assemblies or when you want spares on hand for future projects.

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