Fin Screw M6x90 Unifiber UF600000300

Fin Screw M6x90 Unifiber UF600000300

Description:

This Fin Screw M6x90 from Unifiber is a precision fastener engineered to securely attach fins and fin boxes to boards and watercraft. Its M6 thread and 90 mm length provide a strong, reliable connection that resists loosening under repeated loads and high-thrust conditions. Machined for accurate thread engagement and finished with a corrosion-resistant surface, the screw is built to withstand marine environments and regular use. By minimizing play between fin and hull, it improves power transfer and helps maintain clean hydrodynamics for better propulsion. The robust construction delivers long-term durability and dependable performance for riders and athletes who demand secure hardware. Designed to be compatible with standard M6 fin fittings and most fin boxes, it works well across a wide range of windsurfing, SUP, kite and surf applications.

Key Features:

• Marine-grade, corrosion-resistant metal construction for long life in wet environments
• M6 thread with 90 mm length for deep, secure engagement
• Precision-machined threading for reliable fit and smooth installation
• Low-profile design to reduce snagging and drag
• Minimizes fin movement to improve thrust and board control
• Simple to install and remove with standard tools
• Compatible with standard M6 fin boxes, plates and mounting hardware
• Durable under repeated high-load cycles common in windsurfing, SUP and kiteboarding

Specifications:

Manufacturer: Unifiber
SKU: UF600000300
Material: Corrosion-resistant metal (marine-grade stainless steel finish)
Size/Dimensions: M6 x 90 mm (6 mm thread diameter, 90 mm overall length)
Weight: Lightweight (approx. 20–40 g per unit)
Color: Metallic / Silver
Size: One size (fits standard M6 fittings)
Category: Spare Parts
Age Group: Adults
Gender: Unisex

Recommended Use:

Ideal for recreational and advanced riders as well as professionals who need reliable replacement hardware for boards and fin systems. Best suited for windsurfing, stand-up paddleboarding (SUP), kiteboarding and general surfboard fin attachments. Performs well in both calm and demanding open-water conditions thanks to its corrosion resistance and secure fastening. For best results, use with compatible M6 washers or plates and consider a small amount of marine-grade anti-seize or threadlocker to prevent galling and ensure easy future removal.