2 Flange Bolts & 20 150 Flange Bolts 20 Bolt Flange 24 150 Flange Bolts | Factory

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2 Flange Bolts & 20 150 Flange Bolts —
Factory Direct Pricing for 20 Bolt Flange & 24 150 Flange Bolts

Stop overpaying for standard flange bolts. Get ASME B16.5 compliant 2 flange bolts, 20 150 flange bolts, and 24 150 flange bolts — engineered for heavy-duty industrial bolting — delivered from our factory in 10–18 days.

📦 Get Factory Quote in 24h 📞 +86 15630072814

✅ 200+ flange bolt sizes in stock | ✅ ISO 9001 & CE certified | ✅ 30+ countries served

📋 Quick Navigation

🔹 The Real Cost of Cheap Flange Bolts 🔹 Our Solution – 2 Flange Bolts & 20 150 Flange Bolts 🔹 Technical Specs – 20 Bolt Flange & 24 150 Flange Bolts 🔹 Certifications & Clients 🔹 FAQ 🔹 Request a Quote

⚠️ The Hidden Cost of Low-Quality 2 Flange Bolts & 20 150 Flange Bolts

🔧 1. Premature Bolt Failure

A major oil & gas EPC replaced 20 bolt flange assemblies every 6 months due to galling on their 24 150 flange bolts. Downtime cost: $47,000 per incident. Low-grade 2 flange bolts simply cannot maintain preload under thermal cycling.

📦 2. Hidden Supply Chain Delays

A US distributor of 20 150 flange bolts waited 14 weeks for a container — only to find 34% of the 24 150 flange bolts had incorrect thread pitch. Expedite fees + lost sales = $28,000 in unexpected cost.

📋 3. Compliance & Liability Risks

A European contractor used uncertified 2 flange bolts on a high-pressure steam line. The 20 bolt flange joint leaked during commissioning. Penalty clause: €12,000/day. Their insurance now requires ASME B16.5 traceable flange bolts.

🚢 4. High Freight per Unit

Many buyers of 24 150 flange bolts pay 40% more in freight because suppliers ship from multiple warehouses. Our factory consolidates 2 flange bolts, 20 150 flange bolts, and 20 bolt flange in one container — saving you $1,200–$2,800 per shipment.

💡 You don’t need “cheaper” flange bolts. You need a reliable factory partner who delivers 2 flange bolts, 20 150 flange bolts, and 24 150 flange bolts that meet spec — on time, every time.

✅ Our Solution: 2 Flange Bolts, 20 150 Flange Bolts, 20 Bolt Flange & 24 150 Flange Bolts

Engineered in China, trusted globally. Every 2 flange bolt and 20 150 flange bolt is traceable to its heat number.

🏭 2 Flange Bolts — Full Range

Grade 5, Grade 8, B7, B8, 304SS, 316SS. 1/2″ to 4″ diameter. All ASME B16.5 compatible. Black oxide, zinc, HDG, or Xylan coating.

🔩 20 150 Flange Bolts — Class 150

20 bolts per 150# flange set. Diameter: 5/8″ to 1-1/8″. Length: 2-1/2″ to 8″. NIST-traceable mechanical testing included.

⚙️ 20 Bolt Flange — Custom Kits

Pre-assembled 20 bolt flange kits with matched nuts & washers. Reduce installation time by 35%. BOM-matched for your flange size.

📦 24 150 Flange Bolts — High Volume Ready

24 bolts per 150# flange. Grade B7 & L7 in stock. 10,000+ pieces ready for same-day dispatch. Ideal for pipeline & refinery bolting.

🏗️ Construction & Structural

2 flange bolts used in steel-to-steel connections. Our 20 150 flange bolts specified for bridge bearing assemblies in North America.

⛽ Oil & Gas / Petrochemical

20 bolt flange sets for API 6A wellhead equipment. 24 150 flange bolts in Grade B7M for sour service (NACE MR0175).

🚜 Agricultural & Heavy Machinery

High-volume 2 flange bolts for tractor PTO & implement attachments. Cost reduced 22% for a European OEM.

📐 Technical Specifications — 2 Flange Bolts, 20 150 Flange Bolts, 20 Bolt Flange & 24 150 Flange Bolts

Parameter	2 Flange Bolts	20 150 Flange Bolts	20 Bolt Flange (Kit)	24 150 Flange Bolts
Diameter Range	1/2″ – 4″	5/8″ – 1-1/8″	5/8″ – 1-1/4″	5/8″ – 1-1/8″
Length Range	1″ – 24″	2-1/2″ – 8″	Custom per BOM	2-1/2″ – 10″
Grades Available	Grade 5, 8, B7, B8, 304, 316	B7, B7M, L7, 304, 316	B7, B8, 316, Grade 8	B7, B7M, L7, 304
Thread Standard	UNC / UNF / Metric	UNC (ASME B1.1)	UNC / Metric	UNC (ASME B1.1)
Coating Options	Black Oxide, Zinc, HDG, Xylan	Zinc, HDG, PTFE	As specified	Zinc, HDG, Xylan
Certification	ISO 9001, CE, RoHS	ISO 9001, CE, NIST	ISO 9001, CE, MTR	ISO 9001, CE, NACE
Typical Lead Time	10–18 days	12–18 days	14–20 days	10–16 days

🔬 Every lot tested — tensile, yield, hardness, and dimensional check. Full material traceability (MTR) included with each shipment of 2 flange bolts, 20 150 flange bolts, 20 bolt flange, and 24 150 flange bolts.

❓ Frequently Asked Questions — 2 Flange Bolts, 20 150 Flange Bolts, 20 Bolt Flange & 24 150 Flange Bolts

🔹 What grade of 2 flange bolts do you recommend for high-temperature service?

For applications above 400°F (204°C), we recommend Grade B7 or B8 Class 2 2 flange bolts. B7 is rated up to 1000°F (538°C) per ASME B16.5. We also supply 24 150 flange bolts in B7M for sour service.

🔹 How many 20 150 flange bolts do I need for a 150# flanged joint?

A standard 150# flange (ASME B16.5) uses 20 bolts for sizes 10″ through 24″. For example, a 12″ 150# flange requires 20 150 flange bolts of 7/8″ diameter × 3-1/2″ length. We can supply pre-matched 20 bolt flange kits.

🔹 What is the lead time for 24 150 flange bolts in Grade B7?

Our standard lead time for 24 150 flange bolts (Grade B7, zinc-plated) is 10–16 days from order confirmation. For urgent orders, we can expedite in 7–9 days with a 10% rush fee. We stock 50,000+ pieces ready for immediate dispatch.

🔹 Do you offer custom coating for 2 flange bolts?

Yes. We provide Xylan®, PTFE, HDG (hot-dip galvanized), and Dacromet® coatings for 2 flange bolts and 20 150 flange bolts. Minimum order for custom coating is 500 kg. Lead time adds 5–7 days.

🔹 How do you ensure quality for 20 bolt flange assemblies?

Every 20 bolt flange kit is 100% dimensionally inspected and sample-tested for hardness, tensile, and proof load. We provide a Certificate of Conformance with each kit. Third-party inspection (SGS, BV) is available at cost.

🔹 What is the minimum order quantity (MOQ) for 24 150 flange bolts?

Our MOQ for 24 150 flange bolts is 500 pieces per size. For 2 flange bolts, the MOQ is 1,000 pieces. However, we offer sample orders (50–100 pcs) at a 15% premium — ideal for qualification testing.

🔹 Do you ship 20 150 flange bolts to Europe with CE marking?

Absolutely. All our 20 150 flange bolts and 20 bolt flange kits are CE marked under the Pressure Equipment Directive (PED) 2014/68/EU. We also provide UKCA marking for UK-bound shipments. Our DOC (Declaration of Conformity) is included.

🔹 What payment terms do you offer for first-time buyers?

For first-time orders of 2 flange bolts or 24 150 flange bolts, we require 30% deposit, 70% balance before shipment (T/T). For repeat customers with a good track record, we offer L/C at sight or net 60 days (credit limit up to $50,000).

🚀 Ready to Secure Your 2 Flange Bolts & 20 150 Flange Bolts at Factory Price?

Get a firm quote for 20 bolt flange or 24 150 flange bolts within 24 hours — with full traceability, competitive pricing, and a delivery promise you can rely on.

📩 Get Free Quote in 24h 💬 Chat on WhatsApp

📞 Call us: +86 15630072814 | +86 13293070568

📧 Email: shuan@fastenboen.com | grace@fastenboen.com

⏳ Limited-time offer: Free sample kit (value $120) for first-time buyers ordering 500+ pieces of 2 flange bolts or 24 150 flange bolts. Valid until April 30, 2026

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✍️ About the Author

Liang Chen — Senior Fastener Engineer & Export Manager

With 14 years of experience in industrial fastener manufacturing and export, Liang oversees technical compliance and quality assurance at Handan Boen Fastener Manufacturing Co., Ltd. He has personally qualified over 200 flange bolt SKUs for North American and European markets, and is a certified ASME B16.5 inspector. His articles combine hands-on factory knowledge with global supply chain best practices.