Custom Fasteners

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 BoltsHex 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 NutsHex 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 ScrewsSlotted 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 WashersDisc washer, flat washers, spring washers, serrated lock washers, square washers, stop washers
Custom Retaining RingsShaft retaining rings, hole retaining rings, wire retaining rings, open retaining rings, rigid retaining rings.
Custom Wood ScrewsSlotted 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 FastenerSplit pins, cylindrical pins, conical pins, pin shafts, elastic pins, slotted pins, machine keys, dowel pins.
Custom Weld ScrewsWeld screws, weld nuts, weld studs, weld pins.
Custom Expansion Anchor BoltsMetal 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 SetSlotted 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 FastenersSpecial functions, special materials, special sizes, non-standard shapes.

Custom Fasteners Materials

MaterialModel
Low Carbon SteelQ195、Q235、A36、C1006~1022、SS400
Medium Carbon Steel35#、45#、40Mn、SAE 1035、1045、S35C、S45C
Stainless SteelCSS201, SS304, SS316, SS316L, SS430.
Titanium AlloyA-40, A-55, A-70, A-110AT, C120AV, C135AMo, C125AVT.
Alloy Steel35CrMo, 40Cr, 42CrMo, AISI 4140, SCM435, etc.
CopperHPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc.
AluminumAL6061, AL6063, AL6082, AL7075, AL5052, A380, etc.
Monel alloy400, 404, 500.
Inconel alloy600, 601, 617, 625, 686, 690, 706, 718, 725, X-750.
HastelloyC-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 GalvanizingBlack OxideNickel PlatingPhosphatingPolishingDacromet
Black Zinc PlatingWhite Zinc PlatingStainless Steel PassivationMechanical GalvanizingColor Zinc PlatingChrome Plating
Powder SherardizingOlive ZincCopper PlatingComposite PlatingElectrophoresisBaking Paint
Rustban CoatingSilver PlatingCadmium PlatingGold PlatingZinc-Nickel AlloyElectroless Nickel
Teflon (PTFE)AtotechQPQCleaningNylok (Nyseal)Magni Coating
AnodizingAdhesive CoatingZinc-Aluminum-MagnesiumBlue Zinc PlatingYellow Zinc PlatingZinc-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.