Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer
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Knurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYerKnurled Thumb Screws – Aluminum Hand Grip Bolts, 6 - 32 & 1/4 - 20 UNC, 5mm–30mm, 10 Colors - HomeDIYer

Knurled Thumb Screws – Aluminum Hand Grip Bolts, #6-32 & 1/4-20 UNC, 5mm–30mm, 10 Colors

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By HomeDIYer®

Price:
$2.08 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Knurled Thumb Screws in #6-32 & 1/4-20 UNC — Aluminum Hand Grip Bolts in 8 Lengths & 10 Colors

Whether you're building a custom PC, assembling an electronics enclosure, or mounting a camera accessory, reaching for a screwdriver every time you need to open a panel slows you down. These aluminum knurled thumb screws give PC builders, electronics technicians, and DIY hardware enthusiasts a reliable, tool-free fastening solution in the two most common US thread standards — #6-32 UNC and 1/4-20 UNC — with eight length options to match virtually any panel thickness.

Each screw features an aluminum alloy knurled head for a secure hand grip and is available in lengths from 5mm (≈3/16") to 30mm (≈1-3/16"), covering a wide range of panel and bracket stack thicknesses. Choose from 10 anodized colors — Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, and Orange — in packs of 1 or 10 pieces per variant. Mix and match sizes and colors across multiple cart items to cover your full build in one order.

Typical use cases include PC case side panel and top panel fastening where tool-free access is needed frequently, electronics enclosure and server chassis covers that require quick removal without a screwdriver, and camera tripod mount accessories or photography rigs that use the standard 1/4-20 UNC thread. The wide length range also makes these useful for DIY hardware projects where panel thickness varies across different assemblies.

🔩 Thread Compatibility: These screws use UNC (Unified National Coarse) thread standards — #6-32 and 1/4-20. They are not compatible with metric threads (M3, M4, M5, M6, etc.). Confirm your thread standard before ordering.

✅ Key Features of These Knurled Thumb Screws

  • ✋Knurled Head for Secure Hand Grip — The textured aluminum knurled head gives you enough grip to tighten and loosen securely by hand, making these ideal for PC case panels and electronics enclosure covers you access regularly without a screwdriver.
  • 📏8 Lengths from 5mm to 30mm — Available in 5mm (≈3/16"), 5.5mm, 6mm, 10mm (≈3/8"), 12mm (≈1/2"), 16mm (≈5/8"), 20mm (≈3/4"), and 30mm (≈1-3/16") — covering thin panel fastening through deeper bracket stacks in a single listing.
  • 🔩Two UNC Thread Standards in One Listing — #6-32 UNC for electronics enclosures and PC cases, and 1/4-20 UNC for heavier panels and camera tripod mounts. Both are standard US thread sizes, so no adapters or converters are needed.
  • ⚡Lightweight Aluminum Alloy Construction — The aluminum alloy head keeps weight low — important for portable builds, camera rigs, and weight-sensitive enclosures — while the knurled surface provides the grip needed for reliable hand tightening without slipping.
  • 🎨10 Colors for Panel Color-Coding & PC Build Customization — Use different colors to identify panel zones, match your build's color scheme, or mark frequently accessed covers. All 10 colors share the same aluminum alloy construction and UNC thread dimensions.
  • 📦Single-Piece or 10-Pack Options — Order 1 piece to test fit and confirm thread engagement before committing to a full set, or choose a 10-pack for complete panel builds. Each size-color-quantity combination is a separate variant, so you can mix across a single order.

📐 Technical Specifications — Aluminum Knurled Thumb Screws

Thread Standards Available #6-32 UNC / 1/4-20 UNC (see variant options)
Thread Type UNC — Unified National Coarse (US imperial standard)
Metric Compatibility Not compatible with metric threads (M3–M6)
Available Lengths 5mm (≈3/16"), 5.5mm, 6mm, 10mm (≈3/8"), 12mm (≈1/2"), 16mm (≈5/8"), 20mm (≈3/4"), 30mm (≈1-3/16")
Head Style Knurled (hand grip)
Head Material Aluminum alloy
Finish / Color Anodized — Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, Orange
Drive Method Hand-tightened (tool-free)
Quantity per Pack 1 pcs / 10 pcs (see variant options)
Recommended Torque Hand torque only — not for high-load structural use
Corrosion Resistance Good (aluminum alloy with anodized/coated finish)
Common Applications PC case panels, electronics enclosures, server chassis covers, camera tripod mounts (1/4-20 UNC), DIY hardware builds
Country of Origin Contact us to confirm
⚠️ Length Selection Note: Subtract your panel or bracket thickness from the screw length to estimate thread engagement. For #6-32, aim for at least 5–6mm of engagement; for 1/4-20, aim for at least 9–10mm. If unsure, order a single piece first to test fit before buying a 10-pack.

❓ Frequently Asked Questions

What is the difference between #6-32 and 1/4-20 UNC, and how do I choose?

Both are Unified National Coarse (UNC) thread standards used in US hardware. #6-32 has a smaller diameter (approximately 0.138" / 3.5mm) and is commonly used in electronics enclosures, PC cases, and light-duty panels. 1/4-20 has a larger diameter (0.250" / 6.35mm) and is used in heavier panels, camera tripod mounts, and general US hardware. Check your existing screws or the tapped hole size in your application to confirm which thread you need before ordering.

How do I choose the right length for my application?

For thumb screws, you generally want enough thread engagement to hold securely without bottoming out. A common rule of thumb is at least 1.5x the thread diameter in engagement length. For #6-32 that is typically around 5–6mm minimum; for 1/4-20 around 9–10mm minimum. Subtract your panel or bracket thickness from the screw length to estimate how much thread engages the nut or insert. Available lengths range from 5mm (≈3/16") to 30mm (≈1-3/16") in this listing.

How strong are these aluminum knurled thumb screws?

Aluminum alloy thumb screws are generally suited for light-to-medium hand-tightened clamping loads such as PC case panels, electronics enclosure covers, and access panels. They are not intended for high-torque structural applications where steel fasteners are typically required. For repeated tighten-and-release cycles, aluminum threads generally hold up well when mating with a steel nut or threaded insert rather than directly into aluminum.

Can these thumb screws be used outdoors or in humid environments?

Aluminum alloy has natural corrosion resistance and the anodized or coated surface finish adds additional protection. These screws are generally suitable for light outdoor or humid-environment use. For prolonged salt-spray exposure or fully submerged conditions, contact us to confirm suitability for your specific application.

Are these screws compatible with metric threads?

No — these screws use Unified National Coarse (UNC) thread standards (#6-32 and 1/4-20), which are US imperial standards. They are not compatible with metric threads such as M3, M4, M5, or M6. If your application uses metric threads, you will need a different product. Always confirm your thread standard before ordering.

Do the colors affect the thread dimensions or strength?

No — all 10 color variants (Dark Red, Rose Red, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, Orange) are made from the same aluminum alloy material. The colors are anodized or coated surface finishes on the head and do not affect thread dimensions, pitch, or mechanical performance. They are used for visual identification, color-coding panels, or aesthetic customization in PC builds and electronics projects.

Can I order multiple sizes and colors in one order?

Yes — each combination of thread size, length, color, and quantity is a separate variant in this listing. You can add multiple variants to your cart to cover different panel thicknesses or color-coding needs in a single order. Just select the correct size, color, and quantity for each line item before adding to cart.

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

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