NASA Masthead Mounting Kit — Masthead Blocks & Screw

Spare mounting blocks and screws for masthead instruments and accessories.

• Includes 2 mounting blocks, 4 screws and 4 washers
• Block material: UV-stable marine-grade polymer
• Screws: 316 stainless-steel, M5 × 25 mm (M5 × 1 in)
• Block dimensions: 40 × 30 × 15 mm (1.6 × 1.2 × 0.6 in)
• Corrosion-resistant for saltwater use
• Fits most masthead units and universal bases, compatible with NASA Masthead range