TA-VIGOR Flanged Hex Bolts are heavy-duty fasteners designed to resist loosening and spread load across joint surfaces. Confident assembly and reduced rework on site follow from a serrated flange and fully threaded shaft. Are these bolts robust enough for long-term construction and machinery use?
⚡ At a Glance
- • Holding Strength: 10.9 grade carbon steel construction with serrated flange resists loosening under vibration
- • Best for: Structural assemblies, heavy machinery, pipelines and general construction fastening
- • Not ideal for: Environments requiring stainless or marine-grade fasteners for extreme corrosion resistance
Fully threaded M6 x 20mm bolts with 1.0mm pitch, serrated hex head and black oxide finish. Designed for durable load-bearing applications where vibration resistance and even load distribution matter.
Secure joints – thanks to M6 hex serrated flange
Serrated flange beneath the hex head bites into mating surfaces to increase friction and resist loosening caused by vibration or torque. Fully threaded M6 x 20mm shaft with 1.0mm pitch ensures consistent thread engagement along the clamped length.
Firmer joints reduce the frequency of re-tightening in machinery and structural assemblies, improving on-site reliability and safety.
High durability under load – with 10.9 grade carbon steel
10.9 grade carbon steel delivers high tensile strength and load-bearing performance, while a black oxide finish adds a layer of surface corrosion resistance and wear protection.
Robust construction suits heavy-duty applications where strength and long-term performance are required.
Faster assembly – with flanged head that removes need for a washer
Flanged hex head spreads clamping load across a wider area, reducing localised pressure on joined surfaces and eliminating the necessity for separate washers in most cases.
Quicker installation and fewer loose parts simplify on-site work, cutting assembly time and tidying inventory.
✨ The 4 Key Reasons for TA-VIGOR Flanged Hex Bolts
- Serrated flange head – Maintains grip under vibration, cutting re-tightening and maintenance tasks
- Fully threaded M6 x 20mm shaft – Ensures full-length engagement for secure clamping force in assemblies
- Black oxide finish – Adds surface corrosion resistance and improves wear resistance over time
- No-washer flanged head – Speeds assembly and prevents surface damage during tightening
📋 Technical Details at a Glance
- Category: Fasteners
- Size: M6 x 20mm
- Thread pitch: 1.0mm
- Material: Carbon steel
- Grade: 10.9
❓ Frequently Asked Questions
Q: Do these bolts require washers?
A: No, the flanged hex head distributes load across the surface, eliminating the need for separate washers in most applications.
Q: What material and grade are the bolts made from?
A: Made from 10.9 grade carbon steel with a black oxide finish for durability and improved corrosion resistance.
Q: What are the size and thread specifications?
A: Fully threaded M6 x 20mm with a 1.0mm pitch, suitable for secure fastening in structural and machinery assemblies.
🏆 Our Verdict
These bolts suit builders, engineers and DIYers who need reliable, vibration-resistant fastenings for structural and machinery work. Serrated flanged heads, 10.9 grade carbon steel and a fully threaded M6 x 20mm shaft combine to deliver secure joints and simplified assembly. While purchase cost varies, robust construction and reduced maintenance make them a sound long-term choice.
