Whether you're building a sturdy metal frame, mounting brackets, or repairing machinery, the Hillman M6-1.00 mm D x 30 mm L Heat Treated Steel Hex Head Cap Screw is designed to perform under demanding conditions. This M6 hex head cap screw blends precise sizing with rugged, heat-treated steel for reliable strength where it matters most.
Key specifications
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Brand: HILLMAN
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Finish: Heat Treated
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Material: Steel
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Grade: 8.8
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Head diameter: M6-1.00
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Length: 30 mm
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Thread type: Coarse
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Unit of measurement: Metric
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Number in package: 50 pc
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Packaging type: Boxed
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Product type: Hex Head Cap Screw
Why this screw stands out
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Heat-treated steel: The heat-treating process enhances hardness and wear resistance, so the fastener holds tight even in vibration-heavy or load-bearing applications.
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Grade 8.8 strength: A high-tensile rating provides dependable performance for structural connections and equipment mounting without creeping or loosening over time.
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Precise M6 sizing: A true M6 diameter with a 1.00 mm pitch ensures compatibility with standard M6 nuts, tapped holes, and mounting plates, making it a versatile choice for metal-to-metal assemblies.
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Coarse thread: Quick and easy threading in thicker materials or through predrilled holes, reducing installation time on bulk projects.
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Functional hex head: The hex head accepts common drivers and sockets, delivering reliable torque transfer for secure, uniform seating.
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Bulk packaging: With 50 pieces per package, it’s ready for ongoing projects, maintenance kits, or shop inventories without frequent reordering.
Ideal use cases
- Mounting brackets and solar or metal framing where steady, long-term fastening is essential.
- Industrial repairs or equipment retrofits that require a strong, durable fastener with reliable load-bearing capacity.
- Automotive or machinery assemblies that demand a robust M6 connection in metal-to-metal joints.
- DIY projects involving steel furniture, tool racks, or metal enclosures where vibration is a factor.
Installation tips
- Use a compatible hex driver or socket to ensure solid torque transfer and prevent cam-out during installation.
- If the joint requires a seal or to prevent loosening, consider pairing with a washer or appropriate locking method in high-vibration environments.
- Align holes precisely and thread gradually to avoid cross-threading; lubricate threads if the project involves long runs or hard materials.
- Apply enough torque for a snug fit without over-tightening to protect threads and maintain consistent clamping force.
Care and compatibility
These hex head cap screws are designed for standard M6 applications with coarse threading, making them a practical addition to metalworking drawers, hardware kits, and fabrication shops. Their heat-treated finish helps ensure longevity across repeated assemblies, disassemblies, and repairs, keeping projects moving forward with less downtime.
