10TZQ CAST CONTROL CAP (BNT5930)

Product Description

Shimano 10TZQ Cast Control Cap (BNT5930)

The Shimano 10TZQ Cast Control Cap (Part #BNT5930) is a precision-engineered OEM replacement part designed for Shimano’s high-performance baitcasting reels. Also referred to as the spool tension knob, this cap is the primary adjustment point for the mechanical braking system. It applies pressure to the spool shaft, allowing anglers to calibrate the spool's rotational speed to match the weight of the lure and wind conditions.

Replacing a lost or damaged cap is essential for maintaining the "fine-tuning" capability of your reel. A properly functioning cast control cap is the first line of defense against backlashes (bird nests) and is critical for achieving maximum casting distance and accuracy.

Product Specifications

• Part Name: Cast Control Cap / Spool Tension Knob

• Primary Part Number: 10TZQ

• Manufacturer Part Number (MPN): BNT5930

• Alternate Part Number: BNT3906 (Used in specific regional cross-references)

• Material: Anodized aluminum with internal precision threads.

Models This Part Fits

The 10TZQ / BNT5930 is used across several iconic Shimano baitcasting series. It is a direct fit for:

• Shimano Curado Series: CU-200G6, CU-200G7, CU-201G6

• Shimano Caenan Series: CAE-100, CAE-101

• Shimano Citica Series: CI-200G6, CI-201G6

• Shimano Caius Series: CIS-200, CIS-201

Pro Tip: If your reel’s tension adjustment feels "mushy" or inconsistent, check the internal spacer and shim located inside the cap. You can find the exact layout of these internal components at www.reelschematic.com.

Key Features

• Micro-Tension Adjustment: Fine-pitch internal threading allows for minute pressure changes, perfect for switching between heavy jigs and light finesse plastics.

• Knurled Grip Profile: Features a textured exterior surface that ensures a non-slip grip, even with wet hands or in cold weather.

• Corrosion-Resistant Finish: Treated with a durable coating to withstand both freshwater and brackish environments without seizing.

• Direct Factory Fit: Ensures a perfect seal against the side plate to prevent dust, salt, and moisture from entering the spool bearing cavity.

Maintenance & Lubrication

To ensure the threads remain smooth and the cap does not become "frozen" over time, we recommend using Deuthlon high-performance lubricants during your seasonal service:

• Thread Care: Apply a light film of Deuthlon Power Grease to the internal threads of the cap. This prevents galling (metal-on-metal wear) and creates a waterproof barrier.

• Spool Shaft Contact: Place a single drop of Deuthlon Reel Gear Oil on the copper shim or felt pad inside the cap where it meets the spool shaft. This reduces heat and friction during high-speed casts.