Screw Pin Clevis (2026 Guide): Specifications, Sourcing, and Quality Assurance from China’s Trusted Foundry
Meta Description: Looking for a reliable screw pin clevis supplier in 2026? This guide covers specs, OEM/ODM capabilities, MOQ, lead times, and quality control from a 20+ year Chinese foundry serving US import managers, brand owners, and wholesalers.
If you are sourcing screw pin clevis hardware for industrial rigging, agricultural equipment, or construction applications, you need a supplier who guarantees dimensional accuracy, material traceability, and consistent lead times. At Shijiazhuang TJJ TRADE CO., LTD, we manufacture cast and machined screw pin clevis components with ISO 9001-aligned processes, supporting OEM/ODM designs with MOQs as low as 500 pieces. This guide covers everything an import manager, brand owner, or sourcing agent needs to evaluate, quote, and place orders with confidence in 2026.
What Is a Screw Pin Clevis? A B2B Buyer’s Overview
A screw pin clevis is a U-shaped fastener with a threaded pin and a cotter hole, used to connect ropes, chains, cables, or lifting hardware in tension applications. Unlike quick-lock or bolt-type clevises, the screw pin design provides a more secure, vibration-resistant connection – critical for overhead lifting, tow lines, and agricultural implements.
Common applications include:
- Rigging & Lifting: Connecting slings, hooks, and turnbuckles in overhead crane systems.
- Agriculture: Attaching implements (plows, harrows, spreaders) to tractors and tow bars.
- Marine & Offshore: Mooring lines, anchor chains, and deck hardware where saltwater corrosion resistance is required.
- Construction & Industrial: Temporary bracing, scaffolding tie-offs, and material handling equipment.
- OEM Machinery: Replacement or original-install components for agricultural, construction, and material-handling equipment.
Industry Pain Points & How TJJ Solves Them
❌ Pain Point: Inconsistent dimensional tolerances across batches
Many importers receive clevises where pin diameter or leg spacing varies by ±0.5 mm or more, causing assembly failures.
✅ TJJ Solution: CMM inspection + batch-level dimensional reports. We hold critical tolerances to ±0.15 mm on pin diameter and slot width.
❌ Pain Point: Hidden material defects (porosity, cracks) leading to field failures
Cast clevises with internal porosity or surface cracks can fail under load, creating liability issues for brand owners.
✅ TJJ Solution: 100% visual inspection + sample magnetic particle inspection (MPI). Material certificates available per heat number.
❌ Pain Point: Long lead times & unreliable shipping commitments
Seasonal demand for agricultural rigging requires just-in-time delivery. Delays cost wholesalers shelf space and end-user trust.
✅ TJJ Solution: 20–35 days lead time for standard sizes. Expedited OEM prototyping in 10–15 days. Real-time production tracking shared weekly.
Technical Specifications & Compliance
Below are the standard specifications for TJJ-manufactured screw pin clevis components. All parameters are nominal and subject to final order confirmation.
| Parameter | Standard Range / Option | Notes |
|---|---|---|
| Material Grades | Ductile Iron (ASTM A536 65-45-12 / 80-55-06), Carbon Steel (ASTM A27 65-35), Stainless Steel 304/316, Forged Steel ASTM A668 | Custom alloys available for OEM projects |
| Finish / Coating | Hot-dip galvanized (ASTM A153), Clear/zinc-plated, Black oxide, Powder-coated (any RAL), Self-color | Salt spray test reports available on request |
| Diameter (Pin) | ¼" to 2" (6 mm – 50 mm) | Custom diameters within foundry pattern capability |
| Working Load Limit (WLL) | 0.5 – 25 tons (depending on size & material) | Proof load testing available per ASTM F2413 |
| Thread Standard | UNC / UNF (inch series), Metric coarse/fine (ISO 724) | Go/No-Go gauge inspection performed |
| Certifications | ISO 9001:2015 (quality system), Material test reports (MTR), Mill certificates, CE (EU) documentation | Third-party inspection (SGS, BV, TÜV) supported at buyer’s cost |
| Packaging | Bulk in woven bags, Master carton + pallet, Polybag + barcode label, Custom retail-ready packaging | Export-grade fumigation-free pallets for US/EU |
Disclaimer: All specifications are indicative. Final dimensions, materials, and performance parameters shall be confirmed in the order agreement.
Manufacturing Capabilities – TJJ Foundry & Machine Shop
Founded in 2003, TJJ operates a 12,000 m² foundry and machining facility in Shijiazhuang, Hebei, China. We employ 85 skilled workers and 12 quality/engineering staff. Our screw pin clevis production line integrates:
- Green sand casting & investment casting – up to 500 kg per piece.
- CNC turning & milling – for pin threading, slotting, and bore finishing.
- Heat treatment furnaces – annealing, normalizing, and quenching for ductile iron and steel grades.
- In-house pattern shop – rapid mold development for OEM designs.
- Testing lab – tensile testing, hardness (Brinell/Rockwell), chemical analysis, and MPI.
We supply screw pin clevis components to importers, brand owners, and OEM equipment manufacturers in the US, South America, Europe, and Africa. In 2025, we shipped over 4.2 million clevis units across all configurations.
TJJ foundry – automated molding line for screw pin clevis casting
CNC threading station – consistent pitch and Go/No-Go compliance
3/8 clevis pin 3/8 clevis pin clevis pins and clips
OEM/ODM Design Support – From Sketch to Production
We understand that brand owners and OEM engineers need more than a catalog part. TJJ offers full OEM/ODM customization for screw pin clevis and related rigging hardware:
| Service | Capability & Lead Time | Typical Output |
|---|---|---|
| Design Review & DFM | 2–5 business days | DFM report with gating / draft angle / shrinkage recommendations |
| Rapid Prototyping (3D printed pattern) | 7–10 business days | Sample castings (5–10 pcs) for fit/form testing |
| Custom Brand Packaging | Included in MOQ 500+ pcs | Polybag, barcode, retail box, user manual |
| Private Label / Logo marking | Laser engraving, embossed casting, or pad printing | Per brand specification – no tooling change fees for existing patterns |
We maintain a library of 250+ existing patterns for standard clevis sizes. If your design fits an existing pattern, tooling cost is waived, and sampling lead time drops to 5 days.
Quality Assurance – ISO 9001 & Beyond
At TJJ, quality is not a department – it’s the process. Our screw pin clevis manufacturing follows a documented quality management system aligned with ISO 9001:2015. Key checkpoints include:
- Incoming raw material inspection: Chemical composition & mechanical property verification per heat/lot.
- In-process dimensional checks: Every 50th piece measured for pin diameter, leg height, slot width, and thread pitch.
- Final inspection (AQL sampling): MIL-STD-1916 Level II, with zero critical defects, 0.65 major AQL, 1.0 minor AQL.
- Third-party inspection: SGS, BV, TÜV, or Intertek supported at buyer’s request (cost shared after $5,000 order value).
- Traceability: Heat number, date code, and inspector ID marked on each carton.
Compliance note: Our products are manufactured for industrial and agricultural use. For ASME B30.26 or OSHA lifting applications, please confirm required safety factors and testing protocols with your order. Certification documents are issued based on actual production batch and testing performed.
What Our Buyers Say – 20+ Years of Trust
TJJ has supplied screw pin clevis and other cast components to buyers in 30+ countries. Here is feedback from recent customers:
Mark Thompson – Import Manager, Midwest Hardware Distributors, USA
"We switched to TJJ for our screw pin clevis line after issues with porosity from our previous supplier. The first shipment passed our AQL 1.0 inspection with zero rejects. Dimensional consistency is excellent – we measured 50 pieces and all were within ±0.1 mm on pin diameter. Lead time was 28 days from P.O. to port. We've placed three repeat orders this year."
Carla Jimenez – Brand Owner, RigPro Equipment, Texas
"I approached TJJ for a custom-designed screw pin clevis with a specific shoulder profile and zinc-nickel plating. Their engineering team sent a DFM within 3 days, and samples arrived in 12 days. The coating passed 72-hour neutral salt spray test per ASTM B117. They are now our primary supplier for all clevis hardware under our brand."
Andre Okonkwo – Sourcing Agent, AfriTrade Logistics, Nigeria
"Lead time reliability is critical for our agricultural season. TJJ consistently ships our screw pin clevis orders within 30 days. The packaging is export-grade – no rust, no damaged threads. I appreciate that they send weekly photos of the production progress without me asking. Highly recommended for first-time importers."
Sarah Chen – Procurement Manager, Pacific Marine Supply, Canada
"We needed stainless steel 316 screw pin clevis for marine mooring systems. TJJ provided MTR certification for every heat, and the final product surface finish was smooth – no sharp edges. Samples matched the approved drawing exactly. We have consolidated four SKUs into regular orders with them."
MOQ, Lead Time, Packaging & Logistics
Clear commercial terms help import managers and wholesalers plan inventory with confidence. Here is what you can expect when ordering screw pin clevis from TJJ:
| Parameter | Standard Condition | OEM / Custom Condition |
|---|---|---|
| MOQ (Minimum Order Quantity) | 500 pcs per size (existing pattern) | 1,000 pcs per SKU (new pattern required) |
| Lead Time (from P.O. confirmation) | 20–35 days (standard sizes) | 25–45 days (including prototyping & First Article) |
| Sample Lead Time | 5–7 business days (existing pattern, paid sample) | 10–15 business days (custom design, pattern development) |
| Sample Cost | $30 – $80 (refundable with bulk order ≥ 500 pcs) | $150 – $400 (non-refundable, includes pattern cost) |
| Payment Terms | 30% T/T deposit, 70% against BL copy / L/C at sight | Negotiable for established relationships (Net 30 available for qualified buyers) |
| Incoterms | FOB Tianjin / Qingdao, CIF US West Coast (Los Angeles / Long Beach) | DDP, EXW also supported |
| Packaging Standard | Polybag + export carton + pallet (fumigation-free) | Retail blister pack / clamshell, barcode labeling, user manual |
| After-Sales / Warranty | 12 months from shipment date (manufacturing defects only) | Extended warranty terms negotiable per contract |
Note: MOQ, lead time, and payment terms are subject to change based on order volume, material availability, and current production load. Always confirm with the latest quotation.
About the Author – David Chen
David Chen is the Senior Technical Director at Shijiazhuang TJJ TRADE CO., LTD, with 15 years of experience in ferrous and non-ferrous casting design, rigging hardware manufacturing, and international supply chain management. He has personally overseen 200+ OEM/ODM projects for clients across North America, Europe, and Africa. David regularly contributes to industry publications on casting quality, sourcing strategy, and compliance for rigging components. He holds a degree in Mechanical Engineering from Hebei University of Technology.
Ready to Source Screw Pin Clevis for Your 2026 Procurement Plan?
Request a quotation, sample, or technical drawing review. We typically respond within 4 business hours.
Tel / WhatsApp: +86-15511680668
Email: sindyhao2014@163.com
Address: Shijiazhuang, Hebei Province, China
Shijiazhuang TJJ TRADE CO., LTD – Your Trusted Partner for Cast & Machined Hardware Since 2003
© 2026 Shijiazhuang TJJ TRADE CO., LTD. All product specifications are for reference only and subject to final order confirmation.
