🔩 Product Overview: M1.6 High‑Type Knurled Thumb Screw – Black Carbon Steel Hand Grip Knob Bolt (3–10mm Lengths)
For precision adjustments in tight spaces, this M1.6 high‑type knurled thumb screw offers a comfortable, tool‑less grip. Made from durable carbon steel with a black finish, the tall knurled head provides excellent finger traction for hand tightening and loosening – no screwdriver needed. Available in thread lengths from 3mm to 10mm (measured under the head), fully threaded with standard M1.6 coarse pitch (0.35mm). Ideal for small electronics, camera accessories, RC models, 3D printer parts, and any application requiring a miniature hand‑tightened fastener. Sold individually – order the quantity you need.
✨ Why This High‑Type Micro Thumb Screw Is a Precision Essential
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M1.6 metric micro thread – Perfect for very small electronics, watchmaking, camera parts, drone components, and precision instruments.
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High‑type (tall) knurled head – Provides extra surface area for a secure finger grip, making hand tightening easier in tight spaces.
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Black carbon steel construction – Strong and durable with a dark, corrosion‑resistant finish. Blends well with black equipment.
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Fully threaded, coarse pitch – Standard M1.6x0.35mm thread runs the entire length for maximum grip and compatibility with M1.6 nuts.
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Lengths from 3mm to 10mm (under head) – Choose the right length for your panel thickness or assembly depth. Thread length measured from underside of head to tip.
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Sold individually – buy exactly what you need – Order 1 piece or more. Perfect for repairs, prototyping, and small‑batch projects.
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Tool‑less operation – Diamond knurl pattern provides excellent finger traction – no tools required for installation or removal.
📏 Technical Specifications – M1.6 High‑Type Knurled Thumb Screw
| Product Type |
High‑Type Knurled Thumb Screws (Hand Grip Knob Bolts) |
| Material |
Carbon steel |
| Finish |
Black (coated) |
| Thread Size |
M1.6 |
| Thread Pitch |
0.35mm (metric coarse) |
| Thread Lengths Available (under head) |
3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm (select from options) |
| Length Measurement |
Under head – from underside of knurled head to tip (head not included) |
| Head Style |
High‑type knurled cylinder (tall profile, diamond knurl) |
Drive Style |
Hand grip (toolless)
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| Quantity |
Sold individually (1 piece per order – adjust quantity as needed) |
❓ FAQs – M1.6 Micro Thumb Screws
🔸 What are the typical uses for an M1.6 thumb screw?
M1.6 is a very small thread size commonly found in miniature electronics (e.g., cameras, smartphones), watchmaking, eyeglass repair, drone components, model making, and precision instruments. It is also used in some medical devices and small mechanical assemblies.
🔸 How is thread length measured? Which length should I choose?
Thread length is measured from the underside of the knurled head to the tip. For thin panels (0.5‑1.5mm), 3‑4mm is sufficient. For slightly thicker assemblies or when using a nut, choose 5‑10mm. Measure your material thickness and add 2‑3mm for proper engagement.
🔸 Are these screws fully threaded? What is the thread pitch?
Yes – fully threaded from under the head to the tip. The pitch is standard M1.6 coarse: 0.35mm.
🔸 Will the black finish rust or wear off?
The black coating provides good corrosion resistance for indoor use. For outdoor or high‑humidity environments, stainless steel is recommended. Under normal hand use, the finish remains durable. Avoid scratching to prevent exposed steel.
🔸 Can I use these screws with nuts, or are they for tapped holes only?
These are standard machine screws – they work with matching M1.6 nuts or in pre‑tapped holes. For through‑hole applications, use a nut on the back side. The knurled head is for hand grip only – do not use tools on the knurling.
🔸 Are these screws magnetic?
Yes – carbon steel is magnetic. For most miniature electronics and instruments, this is not a problem. If you need non‑magnetic fasteners for sensitive equipment, consider brass or stainless steel alternatives.
