Inflated pricing

Middlemen add 30–50% markup. You pay for layers, not quality.

Inconsistent dimensions

Tolerances drift between batches. Thread fit? Head height? A gamble.

High shipping costs

Small orders from multiple suppliers kill your logistics budget.

Missing certifications

No ISO, no RoHS, no traceability — your compliance team says no.

Long lead times

8–12 weeks is "standard"? You need parts on the line yesterday.

OEM/ODM confusion

Custom heads, drives, or coatings? Most suppliers can't handle it.

Factory-Direct Power

No middlemen. 35% cost savings vs. distributors.

Tolerance Grade 2A/2B

Consistent thread fit, every time. Full dimensional report.

48h Express Available

Stock items ship within 48 hours to USA & EU.

OEM/ODM Expert

Custom head markings, drive types, coatings, and packaging.

Agricultural Machinery

Vibration-resistant fasteners for harvesters, tractors, and irrigation systems.

Automotive Assembly

Grade 8 socket heads for engine mounts, brackets, and chassis components.

Construction & Structural

Heavy-duty 9/16 socket cap screws for steel connections and rigging.

Industrial Equipment

Precision fasteners for pumps, compressors, and machine tools.

🏭 50,000 sq ft Manufacturing Hub — Handan, China

Our facility runs 36 cold-forming lines, 42 CNC machines, and 8 heat-treatment furnaces. Every 8-32 socket head screw and 9/16 socket head cap screw is produced under strict ISO 9001:2015 quality management. 10+ years exporting to 30+ countries.

📦 500+ tons of inventory ready for same-day dispatch.

Mark Rivera — Procurement Manager, US Machining

“We switched to Boen for our 8-32 socket head screws and cut fastener costs by 32% while improving tolerance consistency. Their 48h express saved our production line.”

Elena Voss — Technical Director, DE Automotive

“The 9/16 socket head cap screw dimensions matched our drawings perfectly. Full traceability and ISO docs made our audit a breeze. Reliable partner.”

Ahmed Al-Rashid — Operations Manager, UK Construction

“OEM custom markings and Dacromet coating in just 10 days. Boen’s factory-direct model is a game changer for our project margins.”

📌 What are the exact 8-32 socket head screw dimensions?

Per ASME B18.3: thread #8-32 UNC, head diameter 0.270″ (6.86 mm), head height 0.150″ (3.81 mm), hex socket 9/64″. We provide a full dimensional report with every order.

📌 What about 9/16 socket head cap screw dimensions?

Thread 9/16-12 UNC, head diameter 0.875″ (22.23 mm), head height 0.547″ (13.89 mm), hex socket 3/8″. Available in Grade 8 alloy steel or stainless steel.

📌 Do you offer custom lengths or coatings?

Yes. OEM/ODM is our specialty. Custom lengths from 1/4″ to 6″, plus black oxide, zinc, Dacromet, PTFE, and more. MOQ from 500 pcs.

📌 What certifications do you have?

ISO 9001:2015, CE, RoHS, FCC. We also comply with ASTM F593, SAE J429, and ANSI B18.3. Third-party testing available.

📌 How do you handle shipping to USA/Europe?

We offer DDP, FOB, CIF, and EXW. Express (DHL/FedEx) 48h for stock items, sea freight 15–25 days. Real-time tracking provided.

📌 What is your minimum order quantity?

For standard sizes, MOQ is 1,000 pcs. For custom OEM, MOQ starts at 500 pcs. Samples available with lead time 5–7 days.

📌 Can I get a free sample before bulk order?

Absolutely. We provide free samples for qualified buyers. You only pay shipping. Request via our contact form.