HILLMAN M8-1.25 mm D X 45 mm L Hex Head Cap Screw — a reliable, high-strength fastener designed to endure demanding connections in metal, wood, and composite assemblies. Built from heat-treated steel and graded to 8.8, this hex head cap screw delivers consistent torque, strong clamp force, and long-lasting performance you can count on from Hillman.
Engineered for toughness, this screw combines a robust M8 diameter with an M8-1.25 coarse thread and a 45 mm length, making it the go-to choice for fastenings that require both strength and speed in assembly. The heat-treated finish enhances hardness and wear resistance, helping the fastener stand up to vibration, dynamic loads, and repeated assembly.
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Material & Finish: Heat-treated steel for superior hardness and durability; Grade 8.8 for reliable tensile strength under load.
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Size & Thread: M8 diameter with 1.25 mm coarse thread; 45 mm long for versatile mounting options.
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Head & Drive: Hex head design for easy wrench or socket engagement, providing solid grip and straightforward installation.
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Packaging: Boxed packaging with a 50-piece supply, ready for bulk projects or on-the-job use.
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Application Type: Ideal for structural connections, brackets, machinery mounts, furniture assemblies, and other general fastening tasks where a strong, dependable fastener is required.
Why choose this screw? The combination of Grade 8.8 strength and heat-treated steel translates to higher clamping force, reduced thread stripping, and better resilience under load compared with standard carbon steel fasteners. The coarse thread promotes quick, secure assemblies in various materials, while the hex head simplifies installation with common tools, helping you finish projects faster and with greater confidence.
Use cases and scenarios:
- Securing metal brackets to wooden frames in furniture or cabinetry projects.
- Mounting components in light machinery or equipment enclosures where reliable torque is essential.
- Constructing frames, supports, or mounting plates in DIY and professional builds that demand strong, repeatable fastenings.
- Repairs or retrofits where a robust fastener is required and space permits a 45 mm length.
Practical tips for best results:
- Ensure your mating nut or tapped hole matches the M8 coarse thread for clean engagement.
- Apply thread lubricant as needed to optimize torque and reduce galling in high-load assemblies.
- Pre-tap or drill pilot holes when working with hardwoods to prevent splitting and to achieve consistent seating.
- Store the boxed screws in a dry area to preserve finish and prevent corrosion over time.
