Collar MK5 Double-Pin Locker Black 20 mm Unifiber UF590000001

Collar MK5 Double-Pin Locker Black 20 mm Unifiber UF590000001

Description:

The Unifiber MK5 Double‑Pin Locker is a robust boom collar designed to lock 20 mm windsurfing booms securely in place. Its double‑pin locking mechanism provides a positive, play‑free connection that improves control and feedback from the rig while reducing slop under load. Constructed from a high‑strength composite housing with corrosion‑resistant stainless steel pins and fasteners, the collar balances lightweight performance with long‑term durability in a marine environment. The low‑profile black finish minimizes snagging and complements most modern rigs, while the precise tolerances deliver consistent, repeatable locking and easy rigging. This collar is optimized for regular and high‑performance windsurfing where a secure boom‑to‑mast or extension connection translates into better steering response and more efficient power transfer. It is compatible with standard 20 mm boom tubes and integrates smoothly with Unifiber MK5 boom systems and most other 20 mm boom accessories.

Key Features:

• Double‑pin locking system for secure, play‑free connection
• High‑strength composite housing for a lightweight but durable construction
• Corrosion‑resistant stainless steel pins and hardware for marine longevity
• Low‑profile, streamlined design to reduce snagging and drag
• Precision fit for consistent, repeatable locking and straightforward rigging
• Black finish for a discreet, professional look
• Easy installation and compatibility with standard 20 mm boom tubes
• Designed to withstand repeated loading and harsh saltwater conditions

Specifications:

Manufacturer: Unifiber
SKU: UF590000001
Material: High‑strength composite body with stainless steel double‑pin hardware
Size/Dimensions: Fits 20 mm boom tube diameter (20 mm)
Weight: Not specified by manufacturer — lightweight design optimized for performance
Color: Black
Size: 20 mm
Category: Spare Parts
Age Group: Adults
Gender: Unisex

Recommended Use:

Ideal for recreational to advanced and professional windsurfers who require a reliable, precision locking collar for 20 mm booms. Best suited for windsurfing on lakes, coastal waters and open sea where secure boom attachment improves control in variable winds and chop. Pairs well with Unifiber MK5 booms and standard 20 mm boom accessories; inspect pins and fasteners periodically and rinse after exposure to saltwater for maximum service life.