Cross large flat head self-tapping screws with a cushion drilling tail, often referred to as self-drilling screws, are designed for applications where a strong and secure connection is needed in materials such as metal sheets or construction materials. These screws feature a pointed end that facilitates the self-drilling process, and a large flat head that sits flush with the surface once installed.
Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.
Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.
Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.
Advantage:
Self-Drilling Capability: The drilling tail allows the screw to drill into the material as it is driven in, eliminating the need for pre-drilled holes.
Large Flat Head: The large flat head provides a wide bearing surface, which helps prevent the material from sinking or cracking, especially in softer materials.
Cushion Effect: The "cushion" in the name suggests a design feature that may provide additional support or seating for the screw, enhancing its holding power.
Corrosion Resistance: Often coated with protective finishes like zinc plating or other treatments, these screws resist rust and corrosion, making them suitable for various environments.
Scope of Application
Metal Sheet Fastening: Ideal for fastening metal sheets in construction or industrial applications where a strong hold is required.
Construction: Used in construction projects for securing materials like formwork, safety barriers, and drywall tracks to concrete or metal structures.
Machinery and Equipment Assembly: Used in the assembly of machinery and equipment where a strong and durable fastening solution is needed.
Quality Certification
Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.
Quality inspection
Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.