Vibration Loosening

In heavy machinery and piping systems, standard flanges lose grip under cyclic loads. 67% of unscheduled downtime in oil & gas is linked to fastener failure (source: industry benchmark).

Hidden Cost Overruns

A single flange replacement on a remote pipeline can cost $2,800–$4,500 when factoring in labor, lost production, and emergency logistics. Markups from intermediaries add 25–40%.

Supply Chain Fragmentation

Sourcing from multiple vendors increases inspection burden and lead time variability. 43% of procurement managers report that inconsistent flange quality causes rework delays.

Compliance & Certification Gaps

Non-compliant flanges (missing CE, UL, or ISO marks) can halt projects at customs or during audits. 1 in 5 imports flagged for missing documentation face 30+ day delays.

Anti-Vibration Locking Geometry

Our set screw flanges use a precision-machined cup-point set screw that bites into the shaft, eliminating loosening under 20–150 Hz vibration. Tested to ISO 16130 standard.

Factory-Direct Pricing

No distributor markups. Our set screw pipe flange pricing is 30–45% lower than equivalent European or US-made products, with full material certs (EN 10204 3.1).

Full Compliance Package

Every order includes CE, ISO 9001, RoHS documentation. We also provide UL, FCC, and IPPC certifications on request — no extra lead time.

High-Speed Delivery

From our Handan factory to major ports (Tianjin/Qingdao) in 12–18 days. Express air freight available for urgent orders — 5–7 days door-to-door.

Material & Dimensional Traceability

Each batch is tested for hardness, tensile strength, and coating thickness. Heat numbers and mill certs are included in every shipment.

OEM/ODM Customization

Need a special thread pitch, material grade (304/316, alloy steel, duplex), or coating (HDG, Dacromet, PTFE)? We design and produce in 15–20 working days.

Oil & Gas

Pipeline flanges, wellhead equipment

Heavy Machinery

Gearbox mounts, hydraulic systems

Agricultural Machinery

PTO shafts, irrigation pivot joints

Automotive

Chassis mounts, drivetrain flanges

Construction

Structural steel connections, scaffold ties

Marine & Offshore

Deck piping, ballast systems

1. What is the difference between a set screw flange and a set screw pipe flange?

A set screw flange typically refers to a flanged collar or coupling that uses set screws to lock onto a shaft, used in power transmission and machinery. A set screw pipe flange is designed for pipe systems, with threaded bores and set screws that secure the flange to the pipe end, often used in high-pressure piping. Both are available at Boen in custom configurations.

2. What materials do you offer for set screw flanges?

We stock carbon steel (C45/1045), alloy steel (4140), stainless steel 304/316, and duplex 2205. For special environments, we offer super duplex, Inconel, and Monel on request. All materials come with EN 10204 3.1 mill certificates.

3. Can you provide OEM/ODM custom designs for set screw pipe flanges?

Absolutely. We have an in-house R&D team that can modify thread pitch, flange OD, set screw count, coating, and drive type. Minimum order quantity for OEM is 500 units with a lead time of 15–20 working days.

4. What certifications do you include with each shipment?

Every order includes ISO 9001:2015, CE, and RoHS compliance documents. We also provide UL, FCC, GS, CB, VDE, SAA, and IPPC certifications upon request. No extra charge for standard certifications.

5. How do you handle logistics and shipping costs?

We ship via sea freight (FOB Tianjin/Qingdao) or air express (DHL/FedEx). For orders over $2,000, we offer free sea freight to major ports. Typical delivery: 12–18 days sea, 5–7 days air. We provide full tracking and customs documentation.

6. What is the minimum order quantity (MOQ) for set screw flanges?

Standard MOQ is 200 pieces per size. For sample orders, we offer 10–20 pieces at a nominal cost, which is fully refundable on the first bulk order.

7. Do you offer free samples for testing?

Yes, we provide free samples for qualified buyers. You only pay for shipping. We also offer 30-day money-back guarantee on the first order if the product does not meet specifications.

8. How do I place an order and what payment methods do you accept?

You can contact us via email, WhatsApp, or the form below. We accept T/T, L/C, PayPal, and Western Union. For first-time buyers, we recommend T/T with 30% deposit and 70% against copy of B/L.