Customized Non-standard Special Fastener Manufacturer
Fasteners are indispensable components in mechanical connections, and standard fasteners often fail to meet special requirements. BDfastener can customize non-standard fasteners to meet drawings, including special size bolts, special function bolts, and high-performance shaped fasteners.
From miniature electronic screws to large ship bolts, and from carbon steel, stainless steel, brass, titanium alloy to special alloy materials, BDfastener offers high-quality customized fastener solutions to global customers, meeting the demands of complex engineering projects.
We Support Custom Fasteners of All Types
We can customize various products, including bolts, screws, nuts, washers, and other special parts. BDfastener can meet your needs. Our fasteners comply with strict quality standards such as ISO9001 and can provide PPAP, material test reports, and third-party inspection reports.
| Custom Bolts | Hex bolts, hex flange bolts, round head bolts, square head bolts, countersunk bolts, eye bolts, T-bolts, U-bolts, anchor bolts, flower head bolts, 12point bolts, hub bolts. |
| Custom Nuts | Hex bolts, hex flange bolts, round head bolts, square head bolts, countersunk bolts, eye bolts, T-bolts, U-bolts, anchor bolts, flower head bolts, 12point bolts, hub bolts. |
| Custom Screws | Slotted machine screws, Phillips screws, hex socket screws, square socket screws, composite slot screws, star slot screws, set screws, hand screws; Slotted self-tapping screws, cross-slotted self-tapping screws, hex flange self-tapping screws, slotted hex head self-tapping screws, hex head self-tapping screws, internal hex self-tapping screws, square slot self-tapping screws, flower slot self-tapping screws, composite slot self-tapping screws, self-tapping screws (triangular locking screws), self-drilling screws, self-cutting self-tapping screws, fiberboard nails. |
| Custom Washers | Disc washer, flat washers, spring washers, serrated lock washers, square washers, stop washers |
| Custom Retaining Rings | Shaft retaining rings, hole retaining rings, wire retaining rings, open retaining rings, rigid retaining rings. |
| Custom Wood Screws | Slotted wood screws, cross-slotted wood screws, square-slotted wood screws, hexagon socket wood screws, star-slotted wood screws, hexagon head wood screws, square head wood screws, hook-shaped wood screws. |
| Custom Pin Fastener | Split pins, cylindrical pins, conical pins, pin shafts, elastic pins, slotted pins, machine keys, dowel pins. |
| Custom Weld Screws | Weld screws, weld nuts, weld studs, weld pins. |
| Custom Expansion Anchor Bolts | Metal expansion screws, plastic/nylon expansion screws, sleeve anchor bolt, wedge anchor bolt, hit anchor bolt, expansion screw hook, drop in anchor, chemical anchor bolt, eye expansion bolt. |
| Custom Combination Set | Slotted combination screws, hexagon head combination screws, slotted combination self-tapping screws, hexagon head combination self-tapping screws, mechanical screws, and washer assemblies. |
| Custom Non-standard Fasteners | Special functions, special materials, special sizes, non-standard shapes. |

Customize Your Bolts
Custom Fasteners Materials
| Material | Model |
|---|---|
| Low Carbon Steel | Q195、Q235、A36、C1006~1022、SS400 |
| Medium Carbon Steel | 35#、45#、40Mn、SAE 1035、1045、S35C、S45C |
| Stainless Steel | CSS201, SS304, SS316, SS316L, SS430. |
| Titanium Alloy | A-40, A-55, A-70, A-110AT, C120AV, C135AMo, C125AVT. |
| Alloy Steel | 35CrMo, 40Cr, 42CrMo, AISI 4140, SCM435, etc. |
| Copper | HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc. |
| Aluminum | AL6061, AL6063, AL6082, AL7075, AL5052, A380, etc. |
| Monel alloy | 400, 404, 500. |
| Inconel alloy | 600, 601, 617, 625, 686, 690, 706, 718, 725, X-750. |
| Hastelloy | C-276, C-4, C-22, C-2000, C-59, B, B-2, B-3, X. |
Learn more about custom fastener materials
Custom Fastener Special Surface Treatment
| Hot-dip Galvanizing | Black Oxide | Nickel Plating | Phosphating | Polishing | Dacromet |
| Black Zinc Plating | White Zinc Plating | Stainless Steel Passivation | Mechanical Galvanizing | Color Zinc Plating | Chrome Plating |
| Powder Sherardizing | Olive Zinc | Copper Plating | Composite Plating | Electrophoresis | Baking Paint |
| Rustban Coating | Silver Plating | Cadmium Plating | Gold Plating | Zinc-Nickel Alloy | Electroless Nickel |
| Teflon (PTFE) | Atotech | QPQ | Cleaning | Nylok (Nyseal) | Magni Coating |
| Anodizing | Adhesive Coating | Zinc-Aluminum-Magnesium | Blue Zinc Plating | Yellow Zinc Plating | Zinc-Cobalt Alloy |
Learn more about custom fastener finishes
Custom Fastener Heat Treatment
BDfastener offers a variety of heat treatment processes: annealing, normalizing, tempering, quenching, and surface hardening, which can be customized according to different materials and usage environments.
By precisely controlling the treatment temperature and time, we can meet customers’ personalized requirements for mechanical properties, such as tensile strength, yield strength, and hardness standards.

Custom Fasteners Manufacturing Services
BDfastener offers a complete solution from design to production.
- Sample Production: Rapid prototyping, inspection reports.
- Sizes: M0.6 to M100 (customizable upon request).
- Machining: Drilling, cutting, chamfering, milling, slotting, and grinding.
- CNC: High-precision CNC machining for producing complex-shaped fasteners.
- Forming: Cold forming, hot forging, CNC.
- Threads: Various thread types available, including metric, imperial; right-hand threads, left-hand threads, and special threads.
- Special processes: Laser/stamping marking, anti-loosening treatment.
- Heat treatment: Tempering, carburizing to enhance hardness.
- Custom packaging: Various packaging options available.
