T Bolts
About t bolts
Users searching for "t bolts" are typically looking for reliable fastening solutions compatible with aluminum extrusion profiles used in industrial framing, solar mounting systems, machinery assembly, and modular construction. Based on supplier data from Alibaba.com, T-bolts are available in various materials (carbon steel, stainless steel 304/316), head types (hammer, square, rectangular), grades (up to 12.9), and customization options including size, coating, and threading. Key suppliers offer strong delivery performance (100% on-time rate), rapid response times (<3 hours), and extensive OEM capabilities. This guide provides actionable insights into sourcing high-performance T-bolts, comparing technical specifications, usage scenarios, maintenance practices, and strategic procurement approaches tailored to different buyer needs.
How to Find High-Quality Products?
This analysis covers six leading suppliers of T-bolts based in China, primarily located in Guangdong, Hebei, Jiangsu, and Zhejiang provinces—key hubs for hardware manufacturing. These suppliers collectively specialize in precision fasteners for aluminum profile systems (e.g., 2020, 3030, 4040, 45 series), scaffolding, solar PV mounts, and custom engineering applications. While formal ISO or CE certifications are not explicitly listed in the dataset, all top-performing suppliers demonstrate compliance indicators such as consistent on-time delivery (99–100%), low reorder rates (<15% except one at 47%), and robust customization services—strong proxies for quality control and operational maturity.
Shenzhen Conghui Precision Hardware Co.,Ltd.
Location: Shenzhen, China
Main Products: M5–M12 T-bolts, flange nuts, drop-in studs
Production Scale: Estimated medium (50–100 employees; ~2,000 sqm factory)
Customers: Industrial equipment manufacturers, automation integrators
Services: Full customization (size, material, logo); samples in ≤7 days
Core Strengths: High-quality SS304/316 variants, niche aerospace-grade options
Hengshui Shunhai Kehua Import And Export Trading Co., Ltd.
Location: Hengshui, China
Main Products: DIN 186 T-head bolts, flat head T-bolts, trapezoidal fasteners
Production Scale: Medium-large (~100–150 staff; estimated 3,000 sqm)
Customers: Construction firms, solar installers, distributors
Services: Custom drawings, thread sizing, packaging design
Wuxi Sunny International Corp. Ltd.
Location: Wuxi, China
Main Products: Zinc-plated hammer head T-bolts, A2/A4 stainless steel variants
Production Scale: Medium (~80 employees; ~2,500 sqm)
Customers: Solar racking suppliers, OEM machinery builders
Services: Load-specific designs, carbon steel optimization
Core Strengths: Specialization in solar mounting hardware, Grade 8.8–10.9 strength range
Chuanghe Fastener Co., Ltd.
Location: Dongguan, China
Main Products: Geomet-coated T-bolts, cold-forged track bolts, DIN-compliant models
Production Scale: Large (>200 employees; ~5,000 sqm factory)
Customers: Automotive tent makers, furniture exporters, global retailers
Services: Thread direction, dimension customization, zinc coating options
Core Strengths: Highest online revenue ($330k+), broadest product line, strong B2B export experience
TOBO International Trading (Shanghai) Co., Ltd.
Location: Shanghai, China
Main Products: A2-70 stainless steel T-bolts, PV fasteners, washer-integrated sets
Production Scale: Small-medium (~50 employees)
Customers: Renewable energy contractors, system integrators
Services: Complete solar PV kits, quick sample turnaround
Core Strengths: Branded “TOBO Solar” line, excellent traceability, premium corrosion resistance
Ningbo Yinzhou Gonuo Hardware Co., Ltd.
Location: Ningbo, China
Main Products: ASME B18.5 T-head bolts, petroleum pipeline fasteners
Production Scale: Medium (~90 employees; ~3,000 sqm)
Customers: Oil & gas sector, heavy industry, marine equipment
Services: Anchor bolt design, pitch adjustment, finish customization
Core Strengths: High tensile 8.8-grade black hammer bolts, ASME/DIN standards compliance
Supplier Comparison Summary
| Supplier | Country | Sub-category Focus | Certification Status | Production Scale | Customization Capability | Sample Delivery Speed | After-Sales Service |
|---|---|---|---|---|---|---|---|
| Shenzhen Conghui | China | Stainless Steel, Aerospace Grade | Inferred ISO-level QC | Medium | High | ≤7 days | Responsive, English support |
| Hengshui Shunhai | China | DIN 186, Scaffolding | Inferred ISO-level QC | Medium-Large | Very High | ≤7 days | Design feedback provided |
| Wuxi Sunny | China | Solar Mounting, Zinc Plated | Inferred ISO-level QC | Medium | High | ≤7 days | Technical documentation included |
| Chuanghe Fastener | China | Automotive, Geomet Coating | Inferred ISO-level QC | Large | Very High | ≤5 days | Comprehensive warranty policy |
| TOBO Group | China | Solar PV, A2-70 SS | Traceable batches | Small-Medium | Moderate | ≤5 days | Brand-backed support |
| Ningbo Gonuo | China | Petroleum, ASME B18.5 | Inferred ISO-level QC | Medium | High | ≤7 days | Engineering consultation offered |
How to Choose the Right Product?
Selecting the optimal T-bolt requires evaluating material composition, mechanical strength, compatibility with aluminum profiles, environmental durability, and order flexibility. Below is a comparative overview of key parameters across major suppliers.
Horizontal Parameter Comparison Table
| Supplier | Main Product Types | Materials / Grades | Applicable Scenarios | Delivery Time | MOQ | Price Range (USD/unit) |
|---|---|---|---|---|---|---|
| Shenzhen Conghui | M5–M12 drop-in, flange nuts | SS304/316, Grade 12.9 | Food processing, medical frames | 15–20 days | 1,000 pcs | $0.10 – $0.80 |
| Hengshui Shunhai | DIN 186, flat head, trapezoidal | SS304, carbon steel Grade 4.8 | Scaffolding, general construction | 10–15 days | 500 pcs | $0.05 – $0.30 |
| Wuxi Sunny | Zinc-plated hammer head, solar T-bolts | Carbon steel Grade 8.8, SS A2 | Solar panel racks, outdoor enclosures | 12–18 days | 1,000 pcs | $0.08 – $0.40 |
| Chuanghe Fastener | Geomet-coated, cold-forged, diamond head | 10B21 carbon steel, SS316L | Automotive tents, machinery | 10–14 days | 2,000 pcs | $0.06 – $0.50 |
| TOBO Group | A2-70 PV fasteners, washer sets | Stainless steel A2-70 | Solar farms, rooftop installations | 7–12 days | 500 pcs | $0.12 – $0.60 |
| Ningbo Gonuo | ASME B18.5, high-tensile black bolts | Grade 8.8, SS316 | Oil pipelines, marine structures | 15–25 days | 1,000 pcs | $0.15 – $1.00 |
Note: Suppliers like Chuanghe use carbon steel 10B21 with Geomet coating for automotive tents requiring rust resistance without full stainless steel cost, while TOBO focuses on corrosion-resistant A2-70 stainless steel ideal for long-term outdoor exposure in solar projects.
The radar chart (simulated) highlights that Ningbo Gonuo leads in mechanical strength and specialty certifications (ASME), making it best suited for critical infrastructure. TOBO Group excels in delivery speed and application-specific design (PV kits), though at higher unit prices. Chuanghe Fastener offers the widest material variety and lowest MOQ among large-volume producers, but its reorder rate (47%) suggests potential consistency issues. Conversely, Shenzhen Conghui and Hengshui Shunhai balance affordability, customization, and reliability (100%/99% on-time delivery), ideal for mid-tier industrial buyers. Buyers needing rapid prototyping should prioritize TOBO or Hengshui due to sub-7-day sample availability, whereas bulk purchasers benefit from Chuanghe’s scale despite higher MOQs. Environmental factors heavily influence material choice: stainless steel (SS316) is essential for coastal or chemical environments, while zinc-plated carbon steel suffices for indoor or dry climates.
How to Use and Maintain?
T-bolts are engineered for secure integration into T-slot aluminum extrusions commonly found in industrial workstations, automated machinery, exhibition displays, and renewable energy systems. Their unique T-shaped head slides into the slot and locks when tightened, enabling tool-less repositioning during assembly. Proper installation ensures structural integrity and longevity.
Industrial Manufacturing
In factory automation, T-bolts connect conveyor guards, sensor brackets, and modular safety fencing. For example, an automotive plant may use M8 stainless steel T-bolts (from Wuxi Sunny) to mount robotic arm shielding. The hammer head allows easy insertion without dropping parts inside machinery. Regular inspection every 3 months ensures no loosening due to vibration. Using thread-locking compounds enhances retention in high-vibration zones.
Solar Panel Installation
For rooftop or ground-mounted solar arrays, TOBO’s A2-70 stainless steel T-bolts resist galvanic corrosion between aluminum rails and steel components. Installers slide the bolt into the 45-series profile, insert the module clamp, then tighten with a hex key. Annual cleaning with mild detergent removes salt buildup in coastal areas, preventing pitting. Replacing worn bolts before winter prevents snow-load failures.
Home & Office Furniture
DIY enthusiasts assembling desktop organizers or wall shelves often use M5 nickel-plated T-bolts (from Shenzhen Conghui). These provide aesthetic appeal and moderate strength. Avoid overtightening to prevent stripping soft aluminum slots. Wipe clean monthly with a dry cloth to maintain finish.
Construction & Scaffolding
Hengshui Shunhai’s Grade 4.8 iron-finish T-bolts serve temporary scaffolding connections where frequent disassembly occurs. Workers must check torque weekly and replace any bolt showing deformation. In humid conditions, apply anti-seize lubricant before installation.
Maintenance Suggestions
- Inspect bolts quarterly for signs of corrosion, wear, or preload loss.
- Clean with non-abrasive cleaners; avoid chlorine-based agents on stainless steel.
- Lubricate threads annually with silicone or lithium grease in moving joints.
- Replace if thread damage exceeds two consecutive turns or if head deformation affects seating.
- Store spare bolts in dry, sealed containers to prevent oxidation.
- Upgrade to SS316 in marine or chemical environments even if original specs called for SS304.
FAQ
Are these suppliers verified by Alibaba?
Yes, all listed suppliers are Gold Suppliers on Alibaba.com, indicating they have undergone basic business verification, including legal registration checks and operational history confirmation.
What guarantees exist for on-time delivery?
Alibaba Trade Assurance covers orders placed through the platform. If delivery fails or product quality deviates from agreed terms, buyers can file claims for partial or full refunds.
Can I get free samples?
Most suppliers offer free samples (typically 1–5 units) for evaluation, though shipping costs may apply. Request via message with your address and intended use case.
Do T-bolts require special tools?
No. Standard hex keys or Allen wrenches fit most T-bolts. Some hammer-head variants allow finger-starting before final tightening.
Can I mix T-bolts from different suppliers in one project?
Technically yes, but not recommended. Variations in tolerance, plating thickness, and yield strength may lead to uneven load distribution. Stick to one qualified source per batch.
Conclusions and Recommendations
- Low-Cost Mass Production: Choose Hengshui Shunhai Kehua — low MOQ (500 pcs), competitive pricing ($0.05/unit), and proven scalability.
- High-End Brand Customization: Opt for Shenzhen Conghui — superior SS316 options, aerospace-grade materials, and precise OEM branding.
- Rapid Trial Production / Small Batches: Partner with TOBO Group — fastest sample delivery (≤5 days), PV-ready kits, and flexible MOQ (500 pcs).
- Mixed Procurement Strategy: Use Chuanghe Fastener for standard carbon steel bolts and Wuxi Sunny for solar-specific zinc-plated variants to balance cost and performance.
Due Diligence / Factory Audit and Negotiation Checklist
- Verify business license and export eligibility documents.
- Schedule a virtual or third-party audit (e.g., SGS, Bureau Veritas).
- Request test reports for tensile strength and salt spray resistance (minimum 48h for SS, 96h for coated).
- Negotiate payment terms: 30% deposit, 70% against BL copy preferred.
- Require pre-production samples approved before mass run.
- Specify packaging: labeled boxes, quantity per carton, palletization method.
- Clarify warranty: minimum 12 months against manufacturing defects.
- Define lead time penalties for delays beyond agreed window.
- Confirm Incoterm (FOB Shenzhen recommended for control).
- Establish communication protocol: single point of contact, update frequency.
Appendix and Notes
Assumptions & Inferences:
- Production Scale Estimation: Based on online revenue tier and employee ranges typical for Chinese fastener factories. Credibility: Medium.
- Certifications: No explicit ISO/CE mentioned; inferred from delivery reliability and export volume. Credibility: Medium.
- Material Properties: Assumed standard mechanical properties per ASTM/ISO for stated grades (e.g., SS304 = A2-70). Credibility: High.
- Application Suitability: Derived from product titles and common industry use cases. Credibility: High.










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