OEM Self-Drilling Hex Head Screw 5.5x50mm EPDM Gasket

OEM Hex Head Fasteners

The OEM Self-Drilling Hex Screw provides a high-performance fastening solution for metal-to-metal applications. This fastener utilizes a hardened drill point to penetrate structural steel without pre-drilling. The integrated 5.5mm diameter shaft ensures high shear strength during high-torque installations. Each unit includes a bonded EPDM rubber washer to prevent moisture ingress. This 200-piece pack serves industrial roofing and cladding requirements.

These fasteners utilize AISI 1022 carbon steel for high tensile strength. The 5.5mm diameter provides structural stability in load-bearing environments. The drill point penetrates steel up to 5mm thickness. The 50mm length allows for multi-layer cladding attachment. The EPDM gasket remains flexible across a wide temperature range. This material resists ultraviolet degradation and ozone exposure. This ensures long-term integrity in outdoor environments. The bonding process between the metal washer and the rubber element prevents separation during high-torque seating.

The zinc coating provides a sacrificial layer to prevent base metal corrosion. This treatment meets standard salt spray test requirements for industrial hardware. Professionals utilize these fasteners for roof decking, side-wall cladding, and steel framing. The 200-count pack provides a standardized quantity for medium-scale installation projects. Each unit undergoes quality control to ensure thread consistency and point sharpness.

Installation requires a standard power driver with a calibrated clutch. Setting the clutch prevents over-tightening which can crush the EPDM seal. A properly seated fastener shows a slightly compressed rubber edge without visible protrusion beyond the metal backing washer. Installers should maintain a perpendicular angle to the work surface to prevent point walking or thread stripping. This technique ensures maximum load distribution across the fastener flange.

Key Features

• Corrosion Mitigation
  The zinc-plated exterior provides a sacrificial barrier against atmospheric moisture and oxidation.

• Torque Efficiency
  The 8mm hex head ensures positive engagement with driver bits to minimize cam-out during high-speed installation.

• Structural Integrity

  • Heat-treated carbon steel provides high shear and tensile strength.
  • Fine-pitch threads maximize pull-out resistance in structural steel.

Specifications

What’s in the Box

• 200 x Zinc-Plated Hex Head Fasteners with Bonded Sealing Washers

Why Choose OEM Hex Head Fasteners

• Industrial grade carbon steel ensures reliable penetration through structural metal components.

• Bonded EPDM gaskets provide a long-lasting watertight seal for roofing and exterior cladding.

• Integrated drill points eliminate the secondary labor step of creating pilot holes.