Project Details
Project Overview
A leading EPC contractor based in Southeast Asia sourced 120 tons of ISO 898-1 8.8 and 10.9 grade hot-dip galvanized hex bolts for a large industrial park construction project, with a required delivery window of 28 days. The project involved structural connections for steel frame buildings, support structures and access platforms across 3 factory facilities.
Client Challenges
The client had previously worked with two local suppliers and ran into repeated issues: inconsistent material certificates that didn't match delivered batches, a 12-day delay on their prior order that pushed back site installation, galvanized coating thickness that fell below the project's 85μm requirement, and no complete heat number traceability across the full order. Their quality team needed documentation they could directly share with the project owner without additional verification.
Our Solution
We handled the full order in our own cold heading and heat treatment workshop:
- In-line cold forming for all bolt blanks, no outsourced forming
- In-house quenching and tempering with continuous hardness monitoring across every batch
- Full heat number traceability from raw wire rod to finished packed bolts
- EN 10204 3.1 MTC issued for every shipped lot, with chemical composition and mechanical test results
- 100% thread gauging inspection, plus spot coating thickness checks before shipment
Delivery Outcome
The full 120 ton order was ready 7 days ahead of schedule. The client's incoming inspection found zero defects across all dimensions, coating thickness and certificate matching. Within two months, they placed a 30 ton repeat order for the project's second phase.
Key Takeaway
For EPC construction projects, fastener procurement decisions don't come down to the lowest per-unit price. Clients prioritize suppliers that can provide consistent documentation, on-time delivery, and full traceability across every batch — these factors directly reduce site risk and rework delays.