Compatibility Assurance: Specifically designed for seamless integration, this milling machine headstock lock bolt handle is fully compatible with Bridgeport models, ensuring a and hassle-free functionality. Robust Construction: Crafted from premium metal, this lock bolt boasts exceptional hardness and durability. Its robust construction prevents breakage and resists rust, extending the operational lifespan and reliability of your milling equipment. Precise Dimensions: Featuring a thread diameter of 1/2 inch (12.5 mm) and a thread length of 1 inch (25.55 mm), this bolt is engineered for precision. to verify the size prior to purchase to a perfect match with your milling machine. Effortless Installation: Designed for user convenience, this lock bolt handle can be easily installed without the need for complex instructions. Its straightforward design allows for immediate use, simplifying the setup process and saving time. Functional Efficiency: This lock bolt handle not only secures the spindle box of your milling machine but also enhances the machine's overall stability and performance during operation, making it an essential component for maintaining optimal functionality. Description/Features: Compatibility: Specifically designed for Bridgeport milling machines, this silver bolt with handle ensures a and functionality. Function: Primarily used to securely fix and lock the spindle box of the milling machine, enhancing stability and precision during operations. Easy Installation: The bolt is crafted for straightforward usage, allowing for quick and hassle-free installation without the need for additional instructions. Durability: Made from metal, the bolt exhibits superior hardness, resistance to breakage and , ensuring an extended service life under rigoroususe. Specifications: Compatibility: Bridgeport Material: Metal Thread Diameter: 1/2 inch (12.5 mm) Thread Length: 1 inch (25.55 mm) Color: As Shown Package Contents: 2 x Milling Machine Locking Bolts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.