Stainless Steel Knife Handle Screws – 10 Sets Double Locking Bolts

Swayboo 416 Stainless Steel CNC Knife Handle Fasteners – 10 Sets

Elevate your knife-making craft with these precision-machined CNC stainless steel double locking spindle bolts. Engineered from durable 416 stainless steel, these fasteners deliver a rock-solid, corrosion-resistant hold for custom knife handles. Whether you're a seasoned bladesmith or a passionate DIY enthusiast, these sets give you the professional-grade hardware you need to build handles that last.

Why Choose These Knife Handle Screws?

• 416 Stainless Steel Construction – Excellent corrosion resistance and long-term durability for demanding workshop environments.
• Double Locking Design – Countersunk head and threaded nut lock together from both sides, keeping your handle scales firmly secured.
• CNC Precision Machined – Tight tolerances ensure smooth threading and a flush, polished finish every time.
• 10 Size Variants Available – From 14 mm to 45 mm full length, covering virtually any handle thickness you work with.
• M4 Thread Standard – Universally compatible with most DIY knife handle builds.
• Fits 5 mm & 6 mm Hole Diameters – Two shaft diameter options to match your drilling setup.
• 10 Sets Per Package – Enough hardware to complete multiple projects in one order.

Full Specifications

• Material: 416 Stainless Steel
• Thread: M4
• Nut Diameter (ND): 12 mm
• Countersunk Head Thickness (HD): 2.5 mm
• Shaft Diameter (D): 5 mm or 6 mm (select your variant)
• Package: 10 sets (pairs) of locking screws
• Country of Origin: Made in Mainland China

Available Size Chart (Stem Diameter 5 mm & 6 mm)

Perfect For

• Custom knife making & bladesmithing
• DIY handle scale assembly (wood, G10, Micarta, bone, etc.)
• Knife handle restoration and repair projects
• Workshop hobby builds and professional knifemakers alike

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Frequently Asked Questions

Q: What material are these knife handle screws made from?

A: These fasteners are CNC machined from 416 stainless steel, a grade known for its excellent corrosion resistance, hardness, and machinability — making it ideal for knife-making hardware that needs to stand up to regular use and exposure.

Q: What hole diameter do I need to drill for these bolts?

A: These screws are available in two shaft diameter options: 5 mm and 6 mm. Choose the variant that matches the hole diameter you plan to drill in your knife handle scales. The M4 thread runs through both options for consistent, secure fastening.

Q: How many screws and sets are included in the package?

A: Each package includes 10 sets of double locking knife handle screws. Each "set" is a matched pair consisting of one countersunk bolt and one locking nut, giving you everything needed to fasten both sides of a handle scale securely.

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

A: These stainless steel bolts work with virtually any handle material that can be drilled to a 5 mm or 6 mm diameter, including wood, G10 fiberglass, Micarta, carbon fiber, bone, antler, and synthetic composites.

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.