Swayboo 416 Stainless Steel Knife Handle Spindle Screws – 2 Sets
Craft a perfectly secure and professional knife handle with these premium 416 stainless steel spindle screws from Swayboo. Engineered for knife making, woodworking, and furniture mounting projects, each set delivers a strong, reliable fastening connection that stands up to daily use. Whether you're building a custom handle from scratch or replacing worn hardware, these M4 spindle screw sets are a must-have in your toolkit.
Why Choose These Spindle Screws?
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Premium 416 Stainless Steel – Corrosion-resistant, durable, and built for long-lasting performance in demanding environments.
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Versatile Sizing Options – Available in 5mm and 6mm hole diameters with total lengths ranging from 14mm to 45mm, making them suitable for a wide variety of handle thicknesses and materials.
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Clean, Professional Finish – Precision-machined for a flush, neat fit that looks great on finished knives, tools, and furniture.
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Easy DIY Assembly – Designed for home crafters and professional makers alike — no specialist tools required beyond a standard screwdriver.
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No High-Concern Chemicals – Manufactured with safety in mind; zero high-concern chemical content declared.
Package Contents
-
2 Sets of spindle screws
- Each set includes: 2× Unilateral Screws + 1× Connecting Rod
- Thread: M4
Available Size Options
5mm Hole Diameter Sizes:
| Size |
ND |
Total Length |
L |
D |
HD |
| Size 1 |
12mm |
19mm |
14mm |
5mm |
2.5mm |
| Size 2 |
12mm |
21mm |
16mm |
5mm |
2.5mm |
| Size 3 |
12mm |
22mm |
17mm |
5mm |
2.5mm |
| Size 4 |
12mm |
25mm |
20mm |
5mm |
2.5mm |
| Size 5 |
12mm |
14mm |
9mm |
5mm |
2.5mm |
| Size 6 |
12mm |
17mm |
12mm |
5mm |
2.5mm |
| Size 7 |
12mm |
30mm |
25mm |
5mm |
2.5mm |
| Size 8 |
12mm |
35mm |
30mm |
5mm |
2.5mm |
| Size 9 |
12mm |
40mm |
35mm |
5mm |
2.5mm |
| Size 10 |
12mm |
45mm |
40mm |
5mm |
2.5mm |
6mm Hole Diameter Sizes:
| Size |
ND |
Total Length |
L |
D |
HD |
| Size 1 |
12mm |
19mm |
14mm |
6mm |
2.5mm |
| Size 2 |
12mm |
21mm |
16mm |
6mm |
2.5mm |
| Size 3 |
12mm |
22mm |
17mm |
6mm |
2.5mm |
| Size 4 |
12mm |
25mm |
20mm |
6mm |
2.5mm |
| Size 5 |
12mm |
14mm |
9mm |
6mm |
2.5mm |
| Size 6 |
12mm |
17mm |
12mm |
6mm |
2.5mm |
| Size 7 |
12mm |
30mm |
25mm |
6mm |
2.5mm |
| Size 8 |
12mm |
35mm |
30mm |
6mm |
2.5mm |
| Size 9 |
12mm |
40mm |
35mm |
6mm |
2.5mm |
| Size 10 |
12mm |
45mm |
40mm |
6mm |
2.5mm |
Made in Mainland China.
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Frequently Asked Questions
Q: What material are these knife handle spindle screws made from?
A: These spindle screws are crafted from 416 stainless steel, a martensitic grade known for its excellent corrosion resistance, strength, and machinability — making it ideal for knife handle making and furniture hardware applications.
Q: How many screws are included in the package?
A: The package includes 2 complete sets. Each set contains 2 unilateral screws and 1 connecting rod, giving you a total of 4 unilateral screws and 2 connecting rods.
Q: What hole sizes do these screws fit?
A: These M4 spindle screws are available to fit either 5mm or 6mm hole diameters, with total lengths ranging from 14mm to 45mm. Select the size that matches your handle material thickness for the best fit.
Q: Are these suitable for home DIY knife making projects?
A: Absolutely. These screws are specifically designed for home DIY use and are ideal for custom knife handle construction, woodworking projects, and furniture mounting. No specialist tools are required — a standard screwdriver is all you need.
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.