Pro-lube GFT/6/1/45/ST-5 45-degree Grease Fitting M6x1

Product Description

The PRO-LUBE GFT/6/1/45/ST-5 is a standard 45-degree grease fitting threaded to M6 x 1.00 metric specification, manufactured from steel with a zinc finish. Also known as a Zerk or lubrication fitting, it accepts a standard grease gun coupler and allows pressurized grease to pass into a bearing, joint, or pivot point while the ball-check valve prevents backflow and contamination. At 21.00 millimeters overall height and 5.50 millimeters shank length, this compact fitting is suited to tight clearance applications. It is sold as a pack of 5, making it a practical bench-stock item for fleet maintenance shops, equipment rebuilders, and field service technicians.

This fitting is used wherever M6 x 1.00 metric threads are specified on machinery, agricultural equipment, automotive components, industrial conveyors, or any lubricated joint that requires periodic greasing. The 45-degree head angle is selected when straight-body fittings cannot be reached with a grease gun due to nearby structure or limited swing clearance. A licensed mechanic, heavy equipment technician, or general maintenance professional typically installs these during equipment assembly or preventive maintenance service.

Key Features

• 45-degree head angle provides access in tight or obstructed lubrication points
• M6 x 1.00 metric thread for direct replacement on metric-threaded equipment
• Steel construction with zinc finish resists corrosion in general industrial environments
• Ball-check valve seats prevent grease blowback and block contaminant ingress
• 21.00 mm overall height and 5.50 mm shank length suit compact bearing housings
• Pack of 5 supports bench stock and multi-point service jobs

Compatibility

Designed as a standard OEM-style replacement grease fitting for any metric-threaded lubrication port accepting an M6 x 1.00 thread with a 45-degree angle head.

Installation Notes

Power down and de-energize or safely immobilize any equipment before replacing grease fittings. Thread the fitting in by hand first to confirm thread engagement without cross-threading, then snug with an open-end wrench - do not overtighten or the ball-check seat may be damaged. Wipe the fitting head clean before attaching the grease gun coupler to avoid introducing debris into the lube point. Dispose of old fittings per local shop waste guidelines.