Leading Fastener Manufacturer Built for Industrial Buyers
Kbear Metal produces bolts, nuts, screws, washers, and custom fasteners at scale for distributors, OEMs, construction contractors, and automotive suppliers across 40+ countries. One factory, 100,000+ SKUs, full traceability.
// Factory Capacity
One Trusted factory. Every fastener your line needs.
Kbear Metal started cold-heading bolts in Pingdu, Shandong in 1989. Three decades later, we run integrated lines for forging, stamping, machining, heat treatment, and surface finishing under one roof. That keeps lead times short, quality consistent, and pricing transparent for our wholesale buyers.
Construction crews buy from hardware chains. Automotive plants buy from tier-1 suppliers. Every one of those buyers traces back to a factory like ours — and Kbear builds for procurement teams who care about batch consistency, certification paperwork, and on-time container shipments.
// Factory at a glance
Seven fastener categories. One Expert factory partner.
Each category runs on dedicated tooling with its own QC checkpoints. Mix and match across product lines in a single container shipment.
Bolts Factory
Hex bolts, carriage bolts, flange bolts, anchor bolts, U-bolts, eye bolts, and structural bolts.
Nuts Factory
Hex nuts, lock nuts, flange nuts, wing nuts, cap nuts, T-nuts, and weld nuts.
Screws Factory
Machine screws, self-tapping, self-drilling, wood screws, drywall screws, and set screws.
Washers Factory
Flat washers, spring washers, lock washers, fender washers, sealing washers, and DTI washers.
Stainless Steel Fasteners
A2 / A4 stainless fasteners in grades 304, 316, 316L for marine, food, and chemical applications.
Custom Fasteners
Engineered fasteners from your CAD drawings. Cold heading, machining, forming — built to print.
OEM Fasteners
Private-label production with your logo, packaging, and brand specifications for resellers.
End-to-end fastener manufacturing under one roof
Eight integrated processes that let us control quality from raw wire to packed pallet.
Cold Heading
Up to M30 cold-formed on 24 multi-station presses. High output, tight tolerances on bolt and screw blanks.
Hot Forging
Large-diameter and high-strength fasteners forged at 1100–1200°C for structural applications.
Thread Rolling
Cold-rolled threads for fatigue strength. ISO metric and UNC / UNF inch threads up to 6g / 2A class.
CNC Machining
Lathes and machining centers for custom heads, knurling, drilled holes, and turned blanks.
Heat Treatment
Quenching, tempering, and case hardening for property classes 8.8, 10.9, 12.9.
Surface Finishing
Zinc plating, hot-dip galvanizing, black oxide, Dacromet, Geomet, phosphating, and PTFE coating.
Quality Control
Salt spray, tensile, torque, hardness, and dimensional inspection on every production batch.
Packing & Export
Bulk, blister, carton, or custom packaging. CIF / FOB shipping with full export documentation.
Standard and specialty alloys
From commodity carbon steel to titanium and Hastelloy for severe-service applications.
Q235 · C45 · 35K · 10B21
Standard automotive and construction grades, cold and hot formed.
SCM435 · 40Cr · 42CrMo
Property class 10.9 and 12.9 high-strength bolting.
304 · 316 · 316L · 410
A2-70 and A4-80 grades for corrosion-resistant environments.
H62 · H65 · Silicon Bronze
Marine hardware, electrical connections, decorative finishes.
6061 · 7075 · 2024
Lightweight fasteners for aerospace and electronics enclosures.
Gr 2 · Gr 5 (Ti-6Al-4V)
Aerospace, medical, and high-corrosion chemical applications.
Inconel · Monel · Hastelloy
Severe-service chemical, marine, and high-temperature parts.
17-4PH · 17-7PH · Alloy 20
Precipitation-hardened grades for demanding service conditions.
From raw wire to packed pallet
Six controlled stages, full traceability at every checkpoint.
Material Inbound
Wire rod and bar stock inspected against mill certificates and chemical composition.
Cold / Hot Forming
Multi-station headers form blank geometry. Hot forging for larger sizes.
Thread Rolling
Cold-rolled threads produce work-hardened, fatigue-resistant profiles.
Heat Treatment
Continuous mesh-belt furnaces achieve target property classes and hardness.
Surface Coating
Plating, galvanizing, or organic coating per buyer specification and salt-spray target.
QC & Pack
AQL sampling, torque-tension tests, dimensional inspection, then sorted and packed.
Certified processes. Documented results.
Procurement managers spend more time chasing paperwork than chasing parts. Our QC team delivers material certs, dimensional reports, and inspection records with every shipment — bundled and indexed for customs and downstream audits.
Material Verification
Spectrometer testing on incoming wire rod confirms chemical composition matches mill certificates before production starts.
In-Process Sampling
Operators pull samples every 30 minutes during heading and threading runs to catch tooling drift early.
Mechanical Testing
Tensile strength, proof load, wedge tensile, hardness (HRC / HV), and torque-tension verified per batch.
Salt Spray Testing
Coated parts tested 96 / 240 / 500 hours per ASTM B117 to confirm corrosion-resistance targets.
Final AQL Inspection
Outgoing batches sampled per ANSI/ASQ Z1.4 with documented reports shipped alongside the cargo.
Trusted by buyers across heavy industry
Distributors and OEMs in construction, automotive, energy, and machinery source from our lines.
Construction
Structural bolts, anchor bolts, threaded rod, and concrete connectors for buildings, bridges, and infrastructure projects.
Automotive
Engine, chassis, and body fasteners. IATF 16949 process control with PPAP documentation for tier-1 and tier-2 supply.
Energy & Wind
Hot-dip galvanized structural bolts, B7 studs, and high-strength fasteners for wind towers and oil & gas equipment.
Industrial Machinery
Precision fasteners for OEM equipment, gearboxes, hydraulic systems, and automated production lines.
Marine & Offshore
316 and 316L stainless fasteners, silicon bronze hardware, and corrosion-resistant assemblies for saltwater service.
Aerospace & Specialty
Titanium, Inconel, and 17-4PH precipitation-hardened fasteners for severe-service and aerospace MRO clients.
Factory direct vs. trading-house sourcing
What changes when you buy fasteners straight from production lines.
| Procurement Factor | Kbear Metal Factory | Trading Company | Online Marketplace |
|---|---|---|---|
| Direct factory pricing | ✓ No markup layer | ✗ 15–25% margin | ✗ Platform fees |
| Custom dies in-house | ✓ 7–10 day tooling | ✗ Outsourced | ✗ Standard only |
| Material traceability | ✓ Mill certs per batch | ✗ Often unavailable | ✗ Limited |
| Quality response time | ✓ Direct engineer access | ✗ Multi-day relay | ✗ Ticket system |
| Production transparency | ✓ Factory visits welcome | ✗ Limited access | ✗ None |
| OEM & private label | ✓ Logo, packaging, docs | ✗ Add-on cost | ✗ Not supported |
| Mixed container shipping | ✓ All categories pooled | △ Coordinated separately | ✗ Per-listing |
A factory built for industrial-scale fastener production
Take a walk through the workshop — 28,000 m² of integrated heading, threading, heat-treatment, and finishing lines under one roof.
See how a fastener gets made
Three short videos showing real production, quality checks, and export packing at our Pingdu factory.
Cold Heading to Thread Rolling
Coiled wire rod becomes finished bolts on multi-station cold-headers and thread-rolling lines.
Inspection & Testing Process
Tensile testing, hardness checks, salt-spray cabinets, and dimensional inspection on every batch.
Packing to Container Loading
Bulk parts get sorted, counted, packed, and loaded onto export containers bound for 40+ countries.
Free Samples
Standard fastener samples shipped free for evaluation. You only cover express courier cost.
First-Order Inspection
Third-party SGS or BV inspection on your first order at our cost — verify before paying balance.
30% Deposit Only
T/T 30% deposit gets your order into production. 70% balance after pre-shipment inspection.
Quality Replacement
Any defect outside agreed AQL gets replaced free on the next shipment, no questions asked.
Buyer questions, answered directly
Practical answers to procurement, technical, and shipping questions we hear most often.
What is the minimum order quantity (MOQ) for fasteners?
Do you supply DIN, ISO, ASME, and JIS standards?
What is your typical lead time?
Can you produce fasteners to our drawings?
What surface treatments do you offer?
Do you provide third-party test reports?
What are your payment terms?
Do you ship to my country?
Contacts
Kbear Metal Factory
Zhanggezhuang Industrial Pack, Pingdu, China
Head Office
Support
+86 18562662895