INTERSCREW STYLE FASTENERS A4 MARINE GRADE STAINLESS STEEL- Specialist Marine Fasteners


Our own high quality Interscrew-style fasteners in A4 Marine Grade Stainless Steel. They are an ideal solution for fitting boat windows and are corrosion resistant.

Manufactured in the UK. These are precision CNC turned components with a superior finish to the mass produced versions commonly available. 

Radiused head with hexagon drive for a high quality, aesthetic finish.

Can't see what you are looking for or need larger quantities?  Message us for larger volume discounts and for details of our specialist manufacturing service.  

See chart below for dimensions.



We provide free delivery via Royal Mail (first class) for UK orders. We endeavour to dispatch within 1 working day of receipt of payment. Tracked shipping options are available, additional charges apply. For overseas orders, we use eBay's Global Shipping Programme and the costs of shipping to your destination are determined by eBay using a tracked service for your peace of mind. Returns are accepted within 30 days.  Postage costs for returns will not be refunded unless the items are deemed to be faulty.

Thanks for trusting Specialist Marine Fasteners with your order – customer service is very important us, and we welcome your feedback.  In the unlikely event of an issue with your order please contact us via eBay messages and we will respond quickly with a resolution.



Please note: In order to help the environment and save paper, we do not include a printed VAT receipt.  Should you require one, please ask at time of ordering and we will email a copy to you.  Thank you.