Fastener Supply Solutions for Global Industries
Yuanpai Fastener is not just a bolt manufacturer — we are a global fastener supply partner. From our 40,000+ sqm factory in Yongnian, China (the world largest fastener hub), we deliver engineered fastening solutions and supply chain services to six high-growth industries. Our value goes beyond products: 180-day free storage, 96-hour fast delivery, inventory management, mixed-container ordering, and small-batch flexibility.
Solar and PV Industry
Application: Ground-mount solar arrays, rooftop PV systems, solar trackers, BIPV installations.
Core Products: Solar mounting bolts (A2-70/A4-70 stainless), ground screws and earth anchors, hanger bolts and L-foot brackets, mid clamps and end clamps, HDG structural bolts (DIN 933/931, 8.8 grade).
Standards and Materials: DIN 933/931, ISO 4014/4017, GB/T 5782/5783, ASTM A307, A2-70/A4-70 stainless, HDG zinc (85um+), dacromet.
Why Yuanpai for Solar: Solar projects demand corrosion resistance (25+ year lifespan) and bulk consistency. Our in-house heat treatment and testing ensure every bolt meets torque and salt-spray specs. Store seasonal solar inventory free for 180 days and release partial shipments as project schedules demand.
EV and New Energy Industry
Application: EV battery packs, motor housings, charging infrastructure, power distribution units, energy storage systems (ESS).
Core Products: High-strength battery enclosure bolts (10.9/12.9 grade), copper busbar fasteners and terminal screws, lightweight aluminum body fasteners, sealing bolts with O-ring grooves, custom shoulder bolts and studs.
Standards and Materials: DIN 912, ISO 4762, GB/T 70.1, SAE J429 Grade 8/10.9/12.9, 10B21/40Cr/SCM435, zinc-nickel plating, dacromet, black oxide.
Why Yuanpai for EV: EV fasteners require precision tolerances (+/-0.05mm), high cleanliness, and lot traceability. Our PPAP-capable quality system supports automotive-grade requirements. Mixed-container ordering lets you combine battery bolts, motor fasteners, and charging hardware in one shipment.
Wind Energy Industry
Application: Onshore and offshore wind turbine towers, nacelle assemblies, foundation anchors, blade connections, transformer stations.
Core Products: Tower flange bolts (M30-M64, 10.9/12.9 grade), anchor bolts and cage assemblies (GB/T 799, lengths up to 3000mm), nacelle inner hex bolts and studs, blade bearing bolts (high fatigue resistance), HDG and zinc-nickel plated fasteners for offshore corrosion.
Standards and Materials: DIN 6914/6915/6916, EN 14399, GB/T 1228-1231, ASTM A490/A325, 42CrMo4/40CrNiMoA, 10.9S/12.9 grade, HDG (100um+), zinc-nickel, geometric coating.
Why Yuanpai for Wind: Wind turbine fasteners are safety-critical components requiring fatigue testing, hardness gradient control, and full traceability. Our in-house heat treatment and UT/MT testing meet wind industry quality demands. Use our 180-day free storage to stage tower bolts and anchor cages, releasing them in sync with foundation pouring schedules.
Steel Structure Industry
Application: Industrial buildings, warehouses, bridges, stadiums, high-rise steel frames, prefabricated construction.
Core Products: High-strength structural bolts (10.9S/8.8S), twist-off type tension control bolts (GB/T 3632), large hexagon head bolts (DIN 6914/GB/T 1228), structural nuts and hardened washers, anchor bolts and embedment parts.
Standards and Materials: GB/T 1228-1231, GB/T 3632, DIN 6914/6915/6916, EN 14399, ASTM A325/A490, 20MnTiB/35VB/40B, 10.9S grade, black oxide, HDG, mechanical galvanizing.
Why Yuanpai for Steel Structure: Structural bolts require precise torque-coefficient control (0.110-0.150) and batch consistency. Our dedicated structural bolt line with automatic torque testing ensures every lot meets spec. Mixed-container ordering combines structural bolts, anchor bolts, and standard fasteners — one PO, one shipment.
Automotive Industry
Application: Passenger vehicles, commercial trucks, trailers, automotive components, aftermarket parts, chassis and powertrain assemblies.
Core Products: Engine and transmission bolts (8.8/10.9/12.9 grade), chassis fasteners (flange bolts, serrated lock nuts), wheel studs and lug nuts, U-bolts and leaf spring fasteners, body screws and self-drilling screws.
Standards and Materials: DIN 931/933/960/961, ISO 4014/4017/4018, GB/T 5782/5783/5785/5786, SAE J429, IFI standards, 10B21/35K/40Cr/SCM435, zinc plating (blue/white/color), black phosphate, dacromet, Geomet.
Why Yuanpai for Automotive: Automotive fasteners demand consistent quality at high volume. Our 200+ employee factory produces 50,000+ tons annually, supporting both OEM and aftermarket demands. Small-batch ordering (MOQ as low as 500kg) lets you test new parts without large inventory commitment, while our 96-hour fast delivery covers urgent aftermarket replenishment.
Construction and Infrastructure
Application: Building construction, infrastructure projects, formwork systems, scaffolding, concrete reinforcement, municipal engineering.
Core Products: Anchor bolts and foundation bolts (L-type, J-type, welded), formwork tie rods and wing nuts, scaffolding fasteners and coupler bolts, concrete embedment parts and anchor plates, HDG guardrail bolts and highway hardware.
Standards and Materials: GB/T 799, DIN 529, ASTM F1554, Q235/Q345/45# steel, HDG (65um+), yellow zinc, mechanical galvanizing.
Why Yuanpai for Construction: Construction projects need reliable delivery and corrosion-resistant fasteners for outdoor exposure. Our HDG line produces 85-100um coating thickness meeting ASTM A153 standards. For infrastructure projects with phased delivery, use our 180-day free storage to hold bulk anchor bolt inventory and release shipments matching construction milestones.
Our Supply Chain Advantage — Beyond the Bolt
What sets Yuanpai apart from thousands of Chinese fastener factories is our supply chain service capability. We are building a Global Fastener Supply Partner model:
- 180-Day Free Storage: Store your bulk fastener inventory in our Yongnian warehouse free for up to 180 days. Release partial shipments as your project or production schedule demands. No storage fees, no minimum release quantity.
- 96-Hour Fast Delivery: Standard stock items (DIN 933/931, common sizes, 8.8 grade zinc plated) are prepared and ready for shipment within 96 hours of order confirmation. Ideal for urgent replenishment and project deadlines.
- Inventory Management: We maintain dedicated inventory for key accounts with real-time stock visibility. Reorder triggers, safety stock levels, and demand forecasting — we manage your fastener inventory so you can focus on your core business.
- Mixed-Container and Small-Batch: Combine multiple products, sizes, and standards in one container. MOQ as low as 500kg per item. Private label packaging with your branding. One purchase order, one shipment, simplified logistics.
Ready to Upgrade Your Fastener Supply Chain?
Whether you need a single container of standard bolts or a multi-year inventory management partnership, Yuanpai Fastener is your reliable supply partner from Yongnian, China.
Contact us today for: Free product samples (standard items), custom fastener quotes from drawings or samples, inventory management consultation, mixed-container ordering planning.
Email: [email protected] | WhatsApp: +86-18531009807 | Factory: No. 668 Longyuan Street, Yongnian District, Handan, Hebei, China