Holt S/S Countersunk Self Tapper Screws

The Holt SS A4 Countersunk Self-Tapping Screws are durable marine-grade fasteners crafted from A4 stainless steel (316), combining corrosion resistance with strong mechanical grip. These screws conform to DIN 7972 standards and are pre-packed in sets for ease of use.

Their countersunk (flat) head design allows for a flush, smooth finish on surfaces, reducing snags and achieving a clean aesthetic - ideal for installations on decks, cabinetry, trim, or other exposed marine surfaces. With their self-tapping capability, these screws can form threads directly into softer metals or plastics, streamlining fitment and maintenance under Irish coastal conditions.

Features

• Made from A4 / 316 stainless steel for strong marine corrosion resistance
• Countersunk head design ensures a flush, snag-free finish
• Self-tapping threads - no pre-drilling required for many substrates
• Complies with DIN 7972 standard
• Ideal for deck fittings, trim, hardware, joinery
• Low maintenance and long-term reliability in coastal, wet, or splash-prone areas
• Head Type - Countersunk design allows for a smooth, flush finish, reducing the risk of snagging or catching on fabrics, skin or other materials

Specifications

• Material: A4 stainless steel
• Head Type: Countersunk
• Standard / Spec: DIN 7972