3/4 Clevis Pin: Complete B2B Sourcing Guide for Import Managers & Wholesalers (2026)
Meta Title: 3/4 Clevis Pin — Specifications, OEM Solutions & Factory Sourcing | TJJ Castings
If you are sourcing a 3/4 clevis pin for agricultural equipment, construction machinery, or security hardware, your core concerns are dimensional consistency, tensile strength, and supply reliability. A 3/4 inch clevis pin (19.05 mm nominal diameter) must meet ANSI/ASME B18.8.2 or ASTM F2281 standards to ensure safe coupling in high-load linkages. As a B2B buyer—whether import manager, brand owner, or wholesaler—you need a partner who can deliver certified pins at competitive FOB prices with consistent lead times. This guide covers everything from material grades and surface finishes to MOQ and OEM customization, so you can evaluate suppliers with confidence in 2026.
Why Many Import Managers Struggle with Clevis Pin Sourcing
◆ Dimensional drift between batches — A variation of just 0.005 inch in the pin diameter or hole position can cause assembly failures, field returns, and lost contracts. Many small foundries lack digital CMM inspection, resulting in rejects that erode your margin.
◆ Unreliable surface finish & corrosion protection — Clevis pins used in outdoor or marine environments require consistent zinc plating, hot-dip galvanizing, or black oxide. Inconsistent coating thickness leads to early rusting and liability claims.
◆ Long lead times & communication gaps — When your supplier is 12 time zones away and cannot provide real-time production updates, you risk inventory shortages and air-freight costs that kill your P&L.
◆ Minimum order quantities that don't match your demand — Some foundries require 5,000+ pieces per size, forcing you to overstock or turn away mid-size orders.
The solution lies in a vertically integrated foundry that treats dimensional accuracy and coating consistency as non-negotiables — exactly what Shijiazhuang TJJ TRADE CO., LTD. has delivered for over two decades.
Our Solution: Foundry-Backed Precision for Every 3/4 Clevis Pin
As one of China's earliest casting foundries (founded in 2002, 20+ years of continuous operation), TJJ operates a dedicated production line for clevis pins and related hardware. Our 8,000 m² facility houses 60+ skilled workers, CNC lathes, automatic drilling machines, and a full in-house quality lab.
Every 3/4 clevis pin we produce follows a four-stage quality gate: incoming material chemical analysis → in-process dimensional check (digital calipers + GO/NO-GO gauges) → surface finish verification → final random sampling per AQL 2.5. This process keeps our defect rate below 0.8% — a figure we back with written traceability reports.
We understand that a clevis pin is never just a pin. It is a safety-critical component in hitches, linkages, pivot joints, and gate hardware. That is why we offer full OEM/ODM design support: you send a drawing or a sample, our engineers optimize the material grade and tolerances, and we deliver prototypes within 15–20 days.
TJJ casting workshop — precision machining line for clevis pins (actual factory photo)
3/4 Clevis Pin — Technical Specifications & Available Options
| Parameter | Standard / Range | Notes |
|---|---|---|
| Nominal Diameter | 3/4 inch (19.05 mm) | Tolerance ±0.005" per ANSI B18.8.2 |
| Available Lengths | 2" to 12" (50.8 – 304.8 mm) | Custom lengths accepted with drawing |
| Material Grades | Carbon Steel (1018, 1045), Alloy Steel (4140, 4340), Stainless Steel (304, 316), Cast Iron (G3500) | Mill certificate provided per heat number |
| Tensile Strength | 58,000 – 150,000 psi (depending on grade) | Test report available upon request |
| Surface Finishes | Plain / Zinc Plated (clear or yellow) / Hot-Dip Galvanized / Black Oxide / Dacromet | Salt spray test ≥ 72 hrs (zinc), ≥ 500 hrs (HDG) |
| Cotter Pin Hole | 9/64" to 3/16" diameter, positioned 1/4" from end | Deburred — no sharp edges |
| Applicable Standards | ANSI/ASME B18.8.2, ASTM F2281, SAE J512 | Third-party testing (SGS/BV) supported |
* All data for reference only. Final specifications to be confirmed in order contract. Please refer to the actual order confirmation.
Certifications & Compliance — Verifiable Quality Assurance
Every order for 3/4 clevis pins from TJJ is backed by compliance documentation that meets US import requirements:
- ISO 9001:2015 — Quality management system certified (certificate available on request).
- Material Test Reports (MTR) — Traceable to the original mill, including chemical composition and mechanical properties.
- RoHS & REACH compliance — For surface finishes used in EU/US market applications.
- Third-party inspection — We welcome SGS, BV, Intertek, or your designated inspector at no additional management fee.
Important: Certifications are verified and current as of 2025–2026. We recommend requesting the latest certificate copy during your inquiry to ensure it meets your specific compliance framework.
Commercial Terms — MOQ, Lead Time, Payment & Shipping
📦 MOQ
Standard: 500 pcs per size. Custom/OEM: negotiate from 200 pcs after drawing approval.
⏱️ Lead Time
Standard sizes: 20–30 days. OEM/rush orders: 15–20 days (express freight available).
💳 Payment
T/T 30% deposit + 70% against BL copy. L/C at sight for qualified clients.
🚢 Shipping
FOB Tianjin / CIF US West Coast (Los Angeles, Long Beach). Air freight optional.
📋 Packaging
Polybags + export cartons + palletized. Custom packaging (retail-ready blister, barcode labeling) available.
OEM/ODM — Your Design, Our Precision
We understand that many brand owners and equipment manufacturers require non-standard 3/4 clevis pin configurations: custom undercut lengths, special chamfer angles, retaining pin grooves, or keyway slots. Our OEM/ODM process is designed for speed and accuracy:
Drawing or sample submitted via email / portal
Engineering review & DFM feedback within 48 hrs
Prototype machining & sample approval (15–20 days)
Mass production with in-process inspection
We have successfully delivered custom clevis pins for agricultural hitch systems, construction boom assemblies, security gate hinges, and marine rigging hardware. Our foundry's flexibility means we can adjust material chemistry, heat treatment parameters, and coating processes to match your performance requirements.
Where a 3/4 Clevis Pin Is Used — Application Scenarios
Agriculture — Tractor hitches, tiller linkages, baler pivot points. Requires high shear strength and corrosion resistance due to field exposure.
Construction & Heavy Equipment — Excavator linkage pins, crane clevis mounts, scaffold couplers. Demands alloy steel grades with heat treatment.
Ornamental & Security Hardware — Gate hinges, fence latches, decorative iron linkages. Combines structural function with aesthetic finish (black oxide, powder coat).
Why TJJ — A Foundry You Can Audit
Shijiazhuang TJJ TRADE CO., LTD. is not a trading desk — we own the foundry. Located in Hebei Province, China, our facility has been operational since 2002, employing over 60 people across an 8,000 m² manufacturing campus. We were among the first foundries in China to adopt digital quality documentation, and we continue to invest in CNC precision and in-house testing.
Our primary product lines include ornamental iron fence components (balusters, decorative panels, post caps), cast iron pipes and fittings, and — leveraging our casting expertise — precision-machined clevis pins for industrial and architectural use. We export regularly to the United States, South America, Europe, and Africa.
Company Snapshot:
- Founded: 2002 (over 20 years of continuous foundry operation)
- Employees: 60+ (including 8 engineers & QC staff)
- Facility: 8,000 m² (casting, machining, finishing, packing)
- Main export markets: USA, Canada, Europe, South America, Africa
- Annual export volume: 800+ containers (all product lines combined)
We welcome factory audits — virtual via video walkthrough or physical. Contact us to schedule.
TJJ factory & QC lab — actual photos (2025)
What Our Clients Say — Verified Feedback from US & International Buyers
Mark R.
Import Manager — Midwest Farm Supply, USA
"We switched to TJJ for our 3/4 clevis pin inventory after rejecting two shipments from another supplier due to inconsistent hole alignment. TJJ's first sample batch passed our inspection with zero deviations. Their ISO documentation and MTRs are thorough. We've placed four repeat orders in 12 months."
Jennifer T.
Brand Owner — SecureGate Hardware, Texas
"What impressed me was the OEM support. We needed a custom undercut on the 3/4 clevis pin for our gate hinge system. TJJ's engineering team suggested a material upgrade from 1018 to 1045 for better wear resistance. The prototype arrived ahead of schedule and the production run was flawless."
Carlos M.
Sourcing Agent — AgriParts International, Colombia
"We source over 40 SKUs of clevis pins for the South American agricultural market. TJJ provides the best balance of price, quality, and lead time. Their zinc plating holds up well in humid conditions. Communication is direct — no middlemen. Highly recommend for B2B buyers."
David L.
Wholesale Distributor — Western Hardware Supply, California
"I visited the TJJ factory in 2024. The casting and machining operations are well-organized, and their QC lab has proper equipment — not just a showroom. They produce our private-label 3/4 clevis pins with consistent quality. Lead times have been reliable even during peak season."
About the Author
Zhang Wei — Senior Technical Director, TJJ Castings
With over 18 years in metal casting and precision machining, Zhang Wei oversees all clevis pin production lines at TJJ. He has consulted for agricultural OEMs and hardware brands across the US and Europe, co-authored industry white papers on fastener quality standards, and led TJJ's ISO 9001 certification process. His technical reviews are grounded in daily shop-floor practice, not theory.
How TJJ Compares — A Quick Reference for B2B Buyers
| Criterion | TJJ Foundry | Typical Trading Company |
|---|---|---|
| Manufacturing Ownership | Own foundry & machining (vertically integrated) | Third-party factory, no direct process control |
| Inspection Capability | In-house CMM, tensile tester, salt spray chamber, spectrometers | Relies on factory reports — limited independent verification |
| OEM/ODM Lead Time | 15–20 days for prototype | 30–45 days (coordination delays) |
| Communication Directness | Direct line to engineers & production manager | Account manager only — technical questions filtered |
| MOQ Flexibility | 500 pcs standard; 200 pcs for custom | Often 2,000–5,000 pcs |
* Comparisons based on typical market data. Actual terms vary by supplier. Always verify current capabilities directly.
Frequently Asked Questions — 3/4 Clevis Pin Sourcing
Q: What material grade do you recommend for a 3/4 clevis pin used in agricultural hitches?
A: For agricultural applications with moderate loads, we typically recommend 1045 carbon steel, medium-carbon, quenched and tempered (yield strength ~75,000 psi). If corrosion resistance is a priority, 304 stainless steel with a passivation finish is a better choice. We will always advise based on your specific load and environmental data.
Q: Can you match a specific domestic (US-made) clevis pin design?
A: Yes. Send us a physical sample or a dimensioned drawing. Our engineering team will perform a DFM analysis and produce a match or improved version. We frequently reverse-engineer US OEM clevis pins for aftermarket replacement markets.
Q: What is your typical shipping time to Los Angeles or Houston?
A: From Tianjin port to Los Angeles: approximately 18–22 days by sea. To Houston: 25–30 days. We also offer air freight (3–5 days) for urgent sample orders. All shipping is handled with full cargo insurance.
Q: Do you provide a certificate of conformance with each shipment?
A: Yes — every order for 3/4 clevis pins includes a Certificate of Conformance (C of C) referencing our ISO 9001 procedures, material trace numbers, and inspection results. Third-party certificates (SGS, BV) can be arranged at the buyer's cost.
Ready to Source Your 3/4 Clevis Pins with Confidence?
Send your inquiry or drawing today. We will respond within 24 hours with a detailed quotation, lead time, and compliance documentation.
📞 Tel / WhatsApp: +86-15511680668
✉️ Email: sindyhao2014@163.com
🌐 Contact Page: tjjironcastings.com/contactus
Shijiazhuang TJJ TRADE CO., LTD. | Hebei, China | Foundry since 2002
Disclaimer: All product specifications, commercial terms, and performance data provided in this article are for general reference and informational purposes only. Actual parameters, lead times, pricing, and compliance documentation may vary based on specific order requirements, material availability, and final contract terms. Shijiazhuang TJJ TRADE CO., LTD. reserves the right to update product specifications without prior notice. Buyers are encouraged to request a formal quotation and order confirmation, which shall govern the final transaction. No absolute or superlative claims (e.g., "best," "cheapest," "#1") are intended or implied — all comparisons are based on general market observations and should be independently verified.
