Sliding Window Sash Lock 3/8'' Latch Diecast-Zinc White - Prime-Line F 2590 4-PK The Prime-Line F 2590 sash lock is a durable, keyed locking solution designed to restore security and function to aluminum-framed vertical and horizontal sliding windows. Engineered as a direct replacement for worn, broken, or missing factory locks, this diecast zinc sash lock features a compact, weather-resistant design with a clean white painted finish that blends seamlessly with modern window frames. Unlike traditional locks requiring a separate keeper plate, this model uses an integrated 3/8-inch cam-action latch that engages directly into the fixed rail of the window ? eliminating alignment issues and simplifying installation. Ideal for homes seeking improved security without replacing entire window units, it provides reliable locking action against forced entry while maintaining smooth window operation. Features - Key-operated locking mechanism for enhanced home security - Integrated 3/8" cam-action latch ? no separate keeper plate required - Compatible with both vertical and horizontal aluminum sliding windows - 2-1/4" mounting hole spacing matches standard factory configurations - Diecast zinc construction ensures strength, corrosion resistance, and long-term durability - Weather-resistant finish protects against moisture, UV exposure, and temperature extremes - White powder-coated finish maintains aesthetic consistency with window frames - Includes all necessary fasteners for quick, tool-friendly installation - Easy retrofit ? replaces most common OEM sash locks without modification - Designed for single and double-hung sliding window applications - Compact profile (under 0.4? thick) fits tight window track spaces Specifications - Brand Name: Prime-Line - Model Name: Prime-Line F 2590 - Part Number: F 2590 - Product Type: Sash Lock - Lock Type: Key Lock - Material: Diecast Zinc - Finish: White Painted - Color: White - Latch Projection: 3/8 inch - Mounting Hole Spacing: 2-1/4 inches - Overall Dimensions: 2.25 x 2.94 x 0.38 inches - Item Weight: 1.76 oz (0.11 lb) - Number of Pieces: 1 (includes mounting screws) - Installation Method: Screw-mounted ? requires Phillips screwdriver - Compatibility: Aluminum-framed sliding windows (vertical horizontal) - Application: Residential window security upgrade - Weather Resistant: Yes - Style: Modern / Contemporary - Country of Origin: China - UPC: 049793025906 - Global Trade Identification Number: 00049793025906 - Manufacturer: Prime-Line Products Product Application The Prime-Line F 2590 sash lock is the ideal repair solution for homeowners with aging or insecure sliding windows ? especially those where original locks have cracked, snapped, or failed to engage properly. Whether your window slides vertically in a multi-story home or horizontally across a patio enclosure, this lock restores peace of mind by preventing unauthorized access through compromised latches. Its clever design eliminates the need for drilling new holes or installing separate keepers ? simply align the existing screw holes, insert the latch into the top rail, and tighten. The key-operated feature adds a layer of control not found in simple push-button latches, making it suitable for ground-floor rooms, rental properties, or areas requiring restricted access. Built for years of service under sun, rain, and seasonal temperature swings, this lock delivers professional-grade reliability at a fraction of the cost of window replacement. Trusted by contractors and DIYers alike, Prime-Line offers precision-engineered parts that don?t just fix ? they restore confidence in your home?s security.