Road safety infrastructure demands high-tensile fasteners that can withstand violent vehicular collisions, environmental weather cycles, and continuous mechanical vibration. Guard rail button head bolts and hex nuts from Intact360 Industries are specifically engineered for securing guardrail posts, highway crash barrier beams, exit ramp barricades, and steep embankments.
Our heavy-duty guard rail button head bolts allow state departments of transportation (DOTs) and infrastructure contractors to extend guardrail systems efficiently while staying within project budgets. Manufactured using proprietary cold-forging and heat-treating processes, each bolt delivers maximum impact toughness, superior fatigue resistance, and long-lasting Hot Dip Galvanized (HDG) corrosion protection.
- Impact Performance: Engineered for extraordinary energy absorption during high-speed vehicle impact conditions.
- Heat-Treated Shank: Increases fatigue endurance under continuous thermal expansion and traffic vibration.
- Convenient Maintenance: Designed for easy capture during installation, allowing quick unbolting and replacement when guardrails need repair.
- Corrosion Barrier: Hot Dip Galvanized steel finish resists rust from de-icing salts, rainwater, and soil moisture.
- Universal Fitting: Works seamlessly across steel post flanges, concrete barriers, bedrock anchors, wood posts, and metal beams.
Common Pile Fasteners for Highway Infrastructure
Intact360's guard rail bolts are widely specified as common pile fasteners across highway crash barriers, guard rails, exit ramps, bridges, and earthen embankments. Featuring an optimized double hex flange head or captured oval shoulder, these bolts allow swift installation and removal using standard conventional hand tools or pneumatic impact drivers.
Because guardrail button head bolts are captured at the beam slot rather than permanently embedded inside poured concrete like regular foundation anchor bolts, highway maintenance crews can replace damaged barrier sections rapidly after traffic accidents without breaking concrete.
Material Specifications & Engineering Standards
Intact360 stocks high-grade guard rail button head bolts and button head cap screws pre-cut to standard lengths, hot-dip galvanized, and ready for immediate project dispatch:
- Diameter Range: Available in sizes from M10 to M20.
- Standard Highway Size: Regular common diameter size is M16 (commonly M16x35mm, M16x45mm, M16x50mm).
- Property Classes: Grade 4.6, 5.6, 5.8, 6.8, and 8.8 high-tensile carbon steel.
- Protective Finishes: Self/Black Phosphate, Zinc Plated, and Heavy-Duty Hot Dip Galvanized (HDG).
- Governing Standards: Conforms strictly to DIN, ISO, BS, and AASHTO M180 international specs.
Technical Specifications & Material Grades
| Fastener Specification | Standard Dimensions | Material & Grade Options | Available Surface Finishes |
|---|---|---|---|
| Guard Rail Button Head Bolt | M10, M12, M16 (Standard), M20 | Grade 4.6, 5.6, 5.8, 6.8, 8.8 Carbon Steel | Hot Dip Galvanized (HDG), Self/Black, Zinc Plated |
| DIN 604 Countersunk NIB Bolt | M12, M16x35mm, M16x45mm, M16x50mm | ISO 898-1 Class 4.6, 5.8, 8.8 High Tensile | Hot Dip Galvanized (HDG), Electro-Zinc |
| Double Hex Flange Nuts | M10 to M20 (Matching Thread Pitch) | Property Class 8, Class 10 Steel | Hot Dip Galvanized, Zinc Electroplated |
| Hardened Guard Rail Washers | Standard M16 & Custom Slotted Sizes | Structural Carbon Steel, Spring Steel | Hot Dip Galvanized (HDG) |
Intact360 maintains deep inventory reserves of pre-cut, hot-dip galvanized button head cap screws, hex nuts, and hardened washers ready for immediate dispatch to urgent highway repair, toll plaza, and new freeway construction projects.
Order High-Tensile Guard Rail Button Head Bolts
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Guard Rail Button Head Bolts Technical FAQ
What are guard rail button head bolts and where are they installed?
What is the standard diameter for highway crash barrier button head bolts?
Why are guard rail button head bolts Hot Dip Galvanized (HDG)?
What property grades are available for Intact360 button head bolts?
How do button head cap screws simplify maintenance and replacement?
Are Intact360 guard rail button head bolts ready to ship?
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