Duchy Fasteners offers a comprehensive selection of A4 316 Cup & Square Bolts | Marine-Grade Fasteners. These high-quality fasteners, including A4 316 stainless steel, Cup head, Square head, are engineered for durability and reliability. They are essential for a variety of applications, catering to the needs of trade professionals, construction workers, engineers, and dedicated DIY enthusiasts across the UK. Our products are ideal for secure and lasting fixings in diverse environments, from timber construction to marine applications. We provide a wide range of metric sizes and grades to meet every project requirement. Each item is manufactured to exacting standards, guaranteeing superior performance and corrosion resistance. For all your fastening needs, trust Duchy Fasteners to deliver quality and service. Explore our selection today and benefit from easy buy online UK with free delivery on eligible orders.

• Cup Square Bolts Carriage Stainless Steel DIN 603 A4
• M6 X 25 - CUP SQUARE DIN 603 316 SS X2 A4
• M6 X 30 - CUP SQUARE DIN 603 316 STAINLESS STEEL X5 A4
• M6 X 20 - CUP SQUARE DIN 603 316 SS X5 A4