Swayboo DIY Knife Handle M3.5 T8 Torx Screw Set – 416 Stainless Steel
Build or restore knife handles with confidence using this precision-crafted screw set from Swayboo. Each kit includes two complete sets of M3.5 T8 plum/torx-head fasteners machined from 416J stainless steel — a high-grade, corrosion-resistant alloy ideal for knife-making, furniture crafting, and general DIY projects. The two-piece unilateral screw + connecting rod design ensures a rock-solid, rattle-free assembly every time.
What's in the Box?
-
2 Sets of M3.5 T8 Torx-Head Fastener Kits
- Each set contains: 2 × Unilateral Screws + 1 × Connecting Rod
- Available in 5 mm and 6 mm hole diameter sizes
- Multiple length options ranging from 12.3 mm to 43.3 mm total length
Key Features
-
Premium 416J Stainless Steel – Rust-resistant, strong, and durable for long-lasting performance
-
T8 Torx (Plum) Drive Head – Superior torque transfer, reduces cam-out during installation
-
M3.5 Thread – Precise fit for standard knife handle holes and furniture applications
-
Dual Hole Size Support – Fits both 5 mm and 6 mm drilled holes (ND = 8 mm head)
-
Wide Length Selection – 10 size variants per hole diameter (L = 9 mm up to 40 mm)
-
Versatile Use – Perfect for knife handles, scales, furniture hardware, and DIY woodworking projects
-
No Hazardous Chemicals – Safe for home workshop use
Specifications
| Brand |
Swayboo |
| Material |
416J Stainless Steel |
| Thread Size |
M3.5 |
| Drive Type |
T8 Torx / Plum Head |
| Head Diameter (ND) |
8 mm |
| Hole Sizes Supported |
5 mm & 6 mm |
| Total Length Range |
12.3 mm – 43.3 mm |
| Package Quantity |
2 Sets (each: 2 screws + 1 rod) |
| Country of Origin |
Made in China (Mainland) |
Size Reference Chart
5 mm Hole Diameter Sizes
| Size |
Total Length |
L |
D |
| 1 |
17.3 mm |
14 mm |
5 mm |
| 2 |
19.3 mm |
16 mm |
5 mm |
| 3 |
20.3 mm |
17 mm |
5 mm |
| 4 |
23.3 mm |
20 mm |
5 mm |
| 5 |
12.3 mm |
9 mm |
5 mm |
| 6 |
15.3 mm |
12 mm |
5 mm |
| 7 |
28.3 mm |
25 mm |
5 mm |
| 8 |
33.3 mm |
30 mm |
5 mm |
| 9 |
38.3 mm |
35 mm |
5 mm |
| 10 |
43.3 mm |
40 mm |
5 mm |
6 mm Hole Diameter Sizes
| Size |
Total Length |
L |
D |
| 1 |
17.3 mm |
14 mm |
6 mm |
| 2 |
19.3 mm |
16 mm |
6 mm |
| 3 |
20.3 mm |
17 mm |
6 mm |
| 4 |
23.3 mm |
20 mm |
6 mm |
| 5 |
12.3 mm |
9 mm |
6 mm |
| 6 |
15.3 mm |
12 mm |
6 mm |
| 7 |
28.3 mm |
25 mm |
6 mm |
| 8 |
33.3 mm |
30 mm |
6 mm |
| 9 |
38.3 mm |
35 mm |
6 mm |
| 10 |
43.3 mm |
40 mm |
6 mm |
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Frequently Asked Questions
Q: What material are these knife handle screws made from?
A: These DIY knife handle screws are crafted from 416J stainless steel, a high-quality, corrosion-resistant alloy widely used in knife-making and precision hardware applications for its excellent strength and durability.
Q: What hole sizes do these M3.5 T8 torx screws fit?
A: The screws are available in two standard drill hole diameter sizes — 5 mm and 6 mm — each offered in 10 length variants (total lengths from 12.3 mm up to 43.3 mm), so you can find the perfect fit for your specific knife handle or furniture project.
Q: What is included in each set?
A: Each set contains 2 unilateral screws and 1 connecting rod. This listing includes 2 complete sets in total, giving you 4 unilateral screws and 2 connecting rods for your DIY knife handle or woodworking build.
Q: Can these screws be used for furniture or woodworking projects beyond knife handles?
A: Absolutely. While specifically designed as knife handle fasteners, these M3.5 T8 torx screws work equally well for furniture hardware, scale mounting, and general DIY woodworking projects wherever a secure, corrosion-resistant stainless steel fastener is required.
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.