Prime-Line N 7538 Bi-Fold Door Bottom Pivot Kit, Two 3/8 In.

Product Overview

The Prime-Line N 7538 Bi-Fold Door Bottom Pivot Kit is a dependable and cost-effective hardware solution designed for repairing or installing bi-fold doors. This kit includes two pairs of bottom pivots—one set with 3/8-inch diameter plastic bases and another with 7/16-inch diameter plastic bases—ensuring compatibility with a wide range of door models and manufacturers. Built with durable plastic bases and steel pivot screws, the components provide stable support and smooth operation over time. Ideal for both homeowners and contractors, this kit simplifies the process of securing bi-fold doors to their jambs or floors, whether you’re replacing worn-out hardware or assembling a new unit from scratch.

Key Features

• Dual-Size Plastic Bases: Includes two pairs of bottom pivots—one set with 3/8-inch diameter bases and another with 7/16-inch diameter bases—offering versatile use across different door sizes and manufacturer specifications. This dual sizing ensures a proper fit for various bi-fold door designs without requiring custom parts.
• Durable Steel Pivot Screws: Each pivot screw is constructed from steel and features a grooved, cone-shaped head that securely fastens into the plastic base. The design enhances grip and alignment, reducing slippage and improving long-term durability.
• Adjustable Height Settings: Each pivot screw can be easily screwed in or out of the plastic base, allowing for fine-tuned height adjustments. This feature ensures precise door leveling and helps prevent sticking or misalignment during operation.
• Easy Installation: Designed for straightforward mounting beneath the vertical section of bi-fold doors. The pivots lock directly into standard pivot brackets attached to the door jamb and/or floor, streamlining setup without requiring specialized tools or complex procedures.
• Universal Compatibility: Widely used and trusted by multiple bi-fold door manufacturers, making it a practical choice for both new installations and repairs in existing units. Its adaptability reduces the need to source brand-specific replacement parts.

Technical Specifications

• Number of Pairs: 2
• Base Diameters: Two 3/8 inch, two 7/16 inch
• Base Material: Plastic
• Pivot Screw Material: Steel
• Pivot Tip Design: Grooved cone-shaped
• Adjustability: Height-adjustable via threaded screw insertion into plastic base
• Installation Location: Installed beneath the pivoting vertical section of bi-fold doors
• Mounting Points: Compatible with standard pivot brackets on jamb and/or floor

Benefits & Use Cases

This bi-fold door bottom pivot kit is ideal for restoring functionality to sliding closet doors, interior room dividers, or other space-saving folding door systems. The dual-size configuration allows users to select the correct base diameter based on the original hardware or structural requirements of the door, ensuring a secure and stable connection. The adjustable nature of the pivot screws enables precise alignment, which is especially helpful when dealing with older doors that may have shifted over time or settled unevenly.

Because these pivots are compatible with standard bracket systems found on most bi-fold doors, they eliminate the hassle of sourcing matching parts from specific brands. Homeowners often use this kit when upgrading aging hardware or fixing misbehaving doors, while maintenance professionals appreciate its reliability and ease of installation during routine repairs. The combination of durable materials and thoughtful design ensures long-lasting performance, even with frequent use. Customers frequently note that the product makes door repairs simple and straightforward, with many expressing satisfaction with both the quality and value of the kit.

Important Notes

The kit contains exactly two pairs of bottom pivots—no additional components such as brackets, screws, or mounting hardware are included unless specified in the package contents. Users must ensure their existing or planned pivot brackets are compatible with the provided plastic bases before installation. While the product is noted for simplicity in repair and overall customer satisfaction with quality and durability, proper measuring and alignment during setup are recommended to achieve optimal performance. Always verify door dimensions and bracket placement to select the correct base size (3/8 inch or 7/16 inch) for your application. Taking a moment to measure and confirm compatibility will help ensure a smooth installation and reliable operation over time.