🔘 3/8-16 UNC Knurled Thumb Screws – Aluminum Alloy Hand Grip Knob + Stainless Steel Stud, Lengths 6–100mm
You’re tired of reaching for a wrench every time you need to adjust a PC case side panel, a power supply mount, or a hard drive bracket. These 3/8-16 UNC knurled thumb screws give you a comfortable, round anodised aluminum head with a diamond knurled surface – just grip and turn by hand. The stainless steel threaded stud provides strength and corrosion resistance, while the aluminum handle keeps weight low. Available in a full range of bright anodised colors: pink, gold, royal blue, sky blue, green, purple, and orange. Choose thread lengths from 6mm up to 100mm (under head). Fully threaded. Perfect for computer modding, chassis assembly, and any application where quick, tool‑less access is a bonus.
✨ Key Features – 3/8-16 UNC Anodised Aluminum Thumb Screws
- 🎨 Vibrant anodised colors – Choose from pink, gold, royal blue, sky blue, green, purple, or orange. Match your build or add a custom accent.
- 🔘 Round knurled head – Diamond‑pattern knurling provides excellent fingertip grip – no tools required.
- ⚖️ Lightweight aluminum + stainless steel – Aluminum handle keeps weight low; stainless steel stud is strong and corrosion‑resistant.
- 🛡️ Corrosion‑resistant finish – Anodised surface protects the aluminum from scratches and oxidation. Stainless steel stud won’t rust.
- 📏 3/8-16 UNC thread – Standard US coarse thread size, widely used in PC cases, power supplies, and industrial equipment.
- 📐 Thread lengths 6–100mm (under head) – Fully threaded for maximum grip. Select exactly what you need from the dropdown.
- 💻 Ideal for computer modding – Computer cases, power supplies, chassis side panels, hard drives, optical drives, network cards, graphics cards, sound cards, and custom modifications.
📏 Specifications – 3/8-16 UNC Knurled Thumb Screws (Aluminum + Stainless)
| Thread Size |
Thread Type |
Thread Pitch (TPI) |
Thread Length (mm, under head) * |
Head Type |
Head Diameter (approx.) |
Head Material / Finish |
Stud Material |
| 3/8-16 UNC |
Coarse |
16 TPI |
6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
(exact availability varies) |
Round knurled (hand grip) |
~12‑16 mm (varies slightly by color/batch) |
Aluminum 6061 / Anodised (choice of colours) |
304 stainless steel |
* Length measured from underside of head to tip. Fully threaded. Tolerance ±0.1 mm. Select colour and thread length from dropdown. Custom lengths available on request.
🎨 Available Anodised Colors – Customise Your Build
| Color |
Best Suited For |
| Pink / Purple / Sky Blue |
Pastel builds, custom gaming PCs, modding projects |
| Gold / Orange |
Premium, high‑contrast accents, enthusiast builds |
| Royal Blue / Green |
Industrial, automotive, or team‑colour themes |
❓ Frequently Asked Questions – 3/8-16 UNC Thumb Screws
1. How do I measure the length of a thumb screw?
For knurled thumb screws, length is measured from the underside of the head (where the knurling ends) to the tip of the threaded stud. The aluminum head is NOT included. For example, a “3/8-16 x 20mm” thumbscrew has a 20mm long threaded shaft under the head. All our lengths follow this standard.
2. Will the anodised colour fade or scratch?
Anodising is a durable, integral finish that resists fading and scratching far better than paint. Normal hand use will not remove the colour. Avoid abrasive contact with hard metal tools.
3. Can I use these screws in a standard 3/8-16 tapped hole?
Yes – the 3/8-16 UNC thread is standard. They will fit any nut or tapped hole with the same specification. Perfect for PC case side panels, power supply mounts, and industrial equipment.
4. Are the threaded studs fully threaded? What about longer lengths?
Yes – all lengths (6–100mm) are fully threaded from under the head to the tip. This ensures maximum grip in blind holes or when using a nut.
5. Do I need a nut or washer with these thumb screws?
If your equipment has a 3/8-16 threaded insert or nut (common on PC cases), you don’t need an additional nut. If you are fastening through a plain hole, use a standard 3/8-16 nut. Washers are optional for load distribution.
6. Can I get custom colours or lengths not listed?
Yes – we offer custom anodising colours and thread lengths for bulk orders. Please contact our customer service with your requirements.
