Qingdao Sande Technology Co., LTD
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Precision CNC Machining For Custom Hexagon Bolts & Nuts – OEM Services
High-Quality Hex Fasteners for Demanding Applications
We specialize in precision CNC machining of custom hex bolts and nuts, delivering OEM-grade fasteners with exacting tolerances and superior strength. Our CNC turning and threading capabilities ensure perfect-fit components for critical assemblies in aerospace, automotive, machinery, and construction.
PRODUCT DETAILS
1 . Material Options
Carbon Steel : Grade 4.8, 8.8, 10.9, 12.9
Stainless Steel : 304 (A2), 316 (A4), 410, 17-4PH
Alloy Steel : 4140, 4340, heat-treated for high strength
Exotic Metals : Titanium (Gr. 2, 5), Inconel, Aluminum 6061/7075
2 . Manufacturing Process
CNC Turning & Threading : ±0.05mm tolerance
Thread Types : Metric (M), UNC/UNF, Whitworth, BSW, or custom profiles
Secondary Operations :
Heat treatment (quenching & tempering)
Surface finishing (zinc plating, hot-dip galvanizing, black oxide)
Anti-galling treatments (PTFE coating, Xylan)
| Feature | Details |
|---|---|
| Hex Bolt Sizes | M3 to M64 (or custom) |
| Nut Sizes | M2 to M56 (DIN 934, ISO 4032) |
| Head Styles | Hex (DIN 931/933), Flange (DIN 6921), Heavy Hex (ASME B18.2.1) |
| Thread Length | Full or partial, per customer specs |
5. Applications
Aerospace: Engine mounts, structural assemblies
Automotive: Suspension systems, drivetrain components
Heavy Machinery: Excavators, hydraulic systems
Energy: Wind turbine bolting, oil rig equipment
WHY CHOOSE OUR HEX BOLTS & NUTS?
✔ Precision Fit – CNC-machined for perfect thread engagement
✔ Material Expertise – From standard steels to superalloys
✔ Fast Turnaround – Prototypes in 5 days, production in 2-4 weeks
✔ Custom Solutions – Non-standard sizes, drive types, and coatings
ORDERING INFORMATION
MOQ : 1000 pieces (lower for prototypes)
Packaging : Bulk boxes, blister packs, or custom kitting
Global Shipping : FOB, CIF, or DDP terms available
Submit your CAD files or drawings for a free machining quote today!