ZF 3312308056 – Stop Screw M12x1.5x50 mm for ZF 45A/63/80A/85A Marine Transmissions

ID 1232792

$ 21.63

1-2 weeks delivery time

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The ZF 3312308056 Stop Screw is an M12 x 1.5 mm threaded control element with a total length of 50 mm and surface hardness of 60 HRC, designed for ZF 45A, 63, 80A, 80IV, 85A, and 85IV marine transmissions. Made from corrosion-resistant alloy steel with a zinc-plated finish, it operates in temperatures from -40°F to 250°F and withstands up to 250 Nm torque and 350 kg load. It prevents over-travel and ensures precise mechanical alignment in high-load marine applications.

Description
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ZF 3312308056 – Stop Screw M12x1.5x50 mm for ZF 45A/63/80A/85A Marine Transmissions

The ZF 3312308056 Stop Screw is a precision-engineered component used in ZF marine transmissions to prevent over-travel and maintain correct mechanical alignment. It plays a crucial role in controlling the movement of transmission elements, ensuring optimal operation and protecting internal parts from mechanical stress and misalignment. Made from corrosion-resistant alloy steel and finished with a zinc plating, this screw is designed to endure saltwater, vibration, and high torque conditions.

Key Features:

Threaded stop screw with fine pitch for precise adjustment
Prevents mechanical over-travel and damage to internal transmission components
High-strength steel construction with zinc-plated finish for marine durability
Rated for high-impact and high-load environments
Suitable for operation in a wide temperature range from –40°F to 250°F
Direct-fit compatible with multiple ZF marine transmission models
Surface hardness of 60 HRC for long service life

Specifications:

Part Number	ZF 3312308056
Component Type	Stop Screw
Material	Alloy steel, corrosion-resistant
Thread Size	M12 x 1.5 mm
Length	50 mm
Diameter	10 mm
Surface Hardness	60 HRC
Finish	Zinc-plated (marine-grade)
Operating Temperature	–40°F to 250°F (–40°C to 121°C)
Torque Resistance	Up to 250 Nm
Maximum Load	350 kg (770 lbs)
Mounting Type	Screw-in, fixed installation
Applications	Travel stop and alignment control in marine transmissions
Shipping Weight	0.3 lbs (0.14 kg)
Shipping Dimensions	127 × 51 × 51 mm (5" × 2" × 2")
Compatibility	ZF 45A, 63, 80A, 80IV, 85A, 85IV

Compatibility and Application:

This stop screw is specifically designed for use in ZF marine transmission systems to limit mechanical movement, prevent over-travel, and ensure proper component alignment. It supports operational safety and system longevity under high-load, vibration-prone, and saltwater conditions. Compatible with a wide range of ZF transmission models, it is ideal for use in both commercial and recreational marine vessels.

Benefits:

Prevents over-travel and reduces mechanical wear
High-strength construction for use in high-impact environments
Corrosion-resistant finish ensures durability in saltwater
Simple installation with secure screw-in design
Precision thread pitch allows for accurate control and adjustment
Maintains alignment and supports smooth power transmission
Operates reliably across a wide temperature range
Direct-fit compatibility reduces downtime and installation complexity

The ZF 3312308056 Stop Screw is a durable, precision-engineered solution for maintaining safe and efficient operation of ZF marine transmissions, protecting internal components from excessive travel and wear in demanding marine environments.