5pcs Stainless Steel Knurled Thumb Screws M3 M4 M5 Flat Head
5pcs Stainless Steel Knurled Thumb Screws M3 M4 M5 Flat Head
Details
5-Pack Stainless Steel Knurled Thumb Screws — M3, M4 & M5 Flat Head
Upgrade your DIY projects, electronics builds, and metalworking setups with these precision-grade knurled thumb screws. Compliant with DIN 653 / GB 835 standards, these hand-tighten screws let you secure panels, enclosures, and computer cases quickly — no tools required. The flat knurled head provides an ergonomic grip for fast, reliable hand-tightening in even confined spaces.
Key Features
- Material: Premium 304 stainless steel — corrosion-resistant and long-lasting
- Standard: DIN 653 / GB 835 compliant for consistent quality
- Sizes Available: M3, M4, and M5 in lengths 6 / 8 / 10 / 12 mm
- Head Style: Flat with fine knurling for a secure, slip-free finger grip
- Drive Style: Tool-free hand tightening — ideal for frequent adjustments
- Certification: CE certified
- Package: Set of 5 pieces
- Customizable: Custom sizes and quantities available on request
Ideal Applications
- Computer cases and server rack panels
- Electronic enclosures and DIY metalworking projects
- Machinery guards, fixtures, and jigs
- Hobbyist builds, 3D printer frames, and robotics
- Any application requiring frequent, tool-free assembly and disassembly
Specifications
| Material | Stainless Steel |
| Standard | DIN 653 / GB 835 |
| Thread Size | M3, M4, M5 |
| Available Lengths | 6 mm, 8 mm, 10 mm, 12 mm |
| Head Style | Flat Knurled |
| Screw Type | Machine Screw |
| Package Quantity | 5 Pieces |
| Country of Origin | Made in China |
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Frequently Asked Questions
Q: What thread sizes do these knurled thumb screws come in?
A: These stainless steel knurled thumb screws are available in M3, M4, and M5 thread sizes, with lengths of 6 mm, 8 mm, 10 mm, and 12 mm — covering a wide range of common DIY and metalworking applications.
Q: Do I need any tools to tighten or remove these thumb screws?
A: No tools are required. The flat knurled head is specifically designed for comfortable hand-tightening and quick removal with your fingers, making them perfect for panels, enclosures, and computer cases that need frequent access.
Q: Are these thumb screws suitable for outdoor or high-moisture environments?
A: Yes. Made from 304 stainless steel, these knurled thumb screws offer excellent corrosion resistance, making them suitable for both indoor and moderately humid or outdoor environments where rust resistance is important.
Q: Are custom sizes or bulk quantities available?
A: Yes, these screws are customizable. If you need a specific size, length, or larger quantity, please reach out to us and we'll be happy to accommodate your requirements.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.