Day 2. Fastener Grades Decoded: Why 8.8, 10.9 & 12.9 Matter More Than You Think (Fasteners Training Arslok)
- Lead Content Writer, Arslok
- Jul 7
- 2 min read
In the industrial world, the grade of a fastener isn’t just a number — it’s a commitment to performance, reliability, and safety.
Yet, many buyers and even sales teams casually overlook what these numbers truly represent. The result?Mismatched applications, structural failures, and missed opportunities for premium positioning.
Let’s fix that.
🔩 What Do These Fastener Grades Actually Mean?
When you see a bolt marked 8.8, 10.9, or 12.9 — you’re looking at tensile strength and yield strength combined into a code.
Here’s how it works:
Grade | Tensile Strength (MPa) | Yield Strength (MPa) |
8.8 | 800 | 640 |
10.9 | 1000 | 900 |
12.9 | 1200 | 1080 |
First Number (e.g., 8 in 8.8) → Tensile strength in hundreds of MPa
Second Number (e.g., .8 in 8.8) → Yield strength as a fraction of tensile
These numbers define how much stress a bolt can take before deforming or breaking.
🛠️ Why It Matters for Manufacturers and Buyers
Imagine using a Grade 8.8 bolt in a high-vibration application that actually demands 10.9 or 12.9 — you're inviting risk.
On the other hand, over-specifying a fastener where it's not needed increases cost unnecessarily.
✅ The right grade = optimum performance, right pricing, and long-term trust.
🚧 Common Mistakes We See in the Field
Sales reps selling fasteners without understanding grade implications
Buyers blindly choosing based on price, not performance
Export orders suffering from returns due to unmarked or wrongly marked bolts
Education is the fix.
🎯 This Is Why Arslok Exists (Fasteners Training Arslok)
At Arslok, we go beyond marketing. We train fastener teams — both technically and commercially — so they don’t just sell fasteners…
They sell confidence.
Led by Maninder Singh Sond (22+ years of sales & marketing experience in fasteners & tools), Arslok offers:
🔹 Technical Fastener Training — Understand grades, specs, coatings, standards
🔹 Fastener Sales Training — Pitch with authority, handle objections, increase repeat orders
🔹 Fastener Branding Strategy — Build trust, not just transactions
“We believe Fastener Brands shouldn’t just compete on price —They should lead with knowledge, trust, and positioning.”
📌 Arslok — India’s B2B Brand Building Partner for Fasteners & Industrial Manufacturers
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