M3.5 Stainless Steel DIY Knife Handle Screws – 10 Sets, 24 Sizes

Swayboo 10-Set M3.5 Stainless Steel DIY Knife Handle Screws

Build, repair, or customize your folding knives with confidence using these precision-machined M3.5 stainless steel knife handle screws from Swayboo. Each set includes a rivet shank and a lock screw engineered to fit a standard 5mm hole, giving you a secure, rattle-free connection every time. With 24 distinct length variants (total lengths ranging from 9.8 mm to 23 mm), you can match the perfect screw to virtually any handle thickness — ideal for knife makers, hobbyists, and serious DIY crafters alike.

Why Choose These Knife Handle Screws?

• Premium Stainless Steel: Corrosion-resistant construction ensures long-lasting durability even through repeated use and cleaning.
• T8 Torx / Plum-Head Drive: Slotted plum (star) head design provides a firm grip and reduces cam-out during tightening.
• 24 Size Options in One Listing: Cover handle thicknesses from ultra-slim to full-size scales — no guesswork required.
• 5mm Shank Diameter: Fits the most common knife handle bore size, compatible with G10, Micarta, wood, and synthetic scales.
• 10 Complete Sets per Pack: Each set includes matching male and female components for a flush, polished finish.
• No Hazardous Chemicals: Contains no high-concern substances — safe for home workshop use.

Specifications

Complete Size Chart (All Sizes Fit 5 mm Hole)

Perfect for Your DIY Workshop

Whether you're assembling a custom folding knife from scratch, replacing worn hardware on a vintage blade, or experimenting with a new handle material, these screws deliver the precision and reliability your project deserves. The stainless steel construction is naturally resistant to corrosion, making these screws a dependable long-term addition to your knife-making toolkit.

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Frequently Asked Questions

Q: What drive tool do I need to tighten these M3.5 knife handle screws?

A: These screws feature a T8 Torx (plum/star) head, so you will need a T8 Torx driver or a matching T8 bit to install and tighten them securely. A standard slotted screwdriver can also be used in a pinch if the slot width matches.

Q: Which handle materials are compatible with these knife screws?

A: These M3.5 stainless steel screws are designed for any knife handle material that can accommodate a 5 mm through-hole, including G10, Micarta, carbon fiber, stabilized wood, bone, and most synthetic scales commonly used in DIY knife making.

Q: How do I choose the right size from the 24 available options?

A: Measure the total thickness of your knife handle scales (both sides combined). Then select a size whose body length (L) closely matches that measurement. For example, if your combined scale thickness is 10 mm, Size 6 (L = 10 mm) or Size 16 (L = 10 mm) would be an ideal fit depending on your preferred neck diameter (6.8 mm or 7.8 mm).

Q: How many complete screw sets are included in one pack?

A: Each pack contains 10 complete sets. Every set includes the male rivet shank and the matching female lock screw, giving you everything needed for a clean, finished assembly.

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.