In the context of premium ironmongery, Flush Fitting Pins (also known as Flush Bolt Pins or Sockets) are the essential receivers for lever-action flush bolts. These Flush Fitting Pins are designed to be morticed into the floor or the head of a door frame, providing a clean, “flush” finish that eliminates trip hazards and ensures a rock-solid locking point for the inactive leaf of a double door.

When used with high-performance hardware like 457mm or 609mm flush bolts, these Flush Fitting Pins ensure the bolt engages deeply and securely, preventing the “chatter” or movement often found in lower-quality installations.

Technical Specifications of Flush Fitting Pins

These Flush Fitting Pins are engineered to withstand significant lateral pressure while maintaining a low-profile aesthetic.

Feature	Detailed Specification
Profile Type	Flush Fitting (Sits level with floor or frame)
Material	Solid Forged Brass or Grade 304 Stainless Steel
Inner Diameter	11mm – 13mm (Standard for architectural bolts)
Faceplate Shape	Circular or Rectangular (Radius ends for easy routing)
Fixing Type	Countersunk Mortice (Screws sit flush with plate)
Internal Depth	20mm – 30mm (Ensures full bolt throw)
Available Finishes	Satin Stainless Steel, Polished Brass, Matte Black, Antique Bronze

Design & Practical Advantages

Zero-Trip Hazard: Unlike surface-mounted strikes, Flush Fitting Pins are recessed into the floor. This is critical for high-traffic doorways, ensuring a smooth transition between rooms without a metal lip to catch on shoes or equipment.
Precision Bolt Engagement: The internal socket is machined to tight tolerances. This creates a “snug” fit for the bolt, preventing double doors from rattling during heavy winds or when the active leaf is slammed.
Discreet Aesthetic: When the doors are open, the hardware is barely visible. The small, circular faceplate blends into timber, tile, or stone floors, maintaining the clean lines of luxury residential and commercial interiors.
High Structural Integrity: Because the Flush Fitting Pins is morticed directly into the floor or frame, it utilizes the surrounding material for strength. This makes it significantly harder to force the door open compared to surface-fixed alternatives.

Primary Applications

Grand Entrance Double Doors: The standard receiver for top and bottom flush bolts on luxury timber or composite front doors.
Internal French Doors: Provides a neat, professional finish in the floor between living areas or master suites.
Commercial Partitions: Ideal for office boardrooms or gallery spaces where a minimalist look is required alongside commercial-grade security.
Bifold Door Systems: Used as a secondary locking point to stabilize the leading leaf of a folding door system.

Professional Installation Tip: Choosing Between Standard & Dust-Proof

When specifying Flush Fitting Pins, the environment of the installation should dictate the type of hardware you choose.

Standard Flush Pin: Best for the head of the door frame. Since gravity prevents dust from settling upward, a standard open-hole pin is sufficient and cost-effective for the top bolt.
The “Dust-Proof” Upgrade: For floor installations, we strongly recommend a Spring-Loaded Dust-Proof Socket. These Flush Fitting Pins feature a spring-loaded plunger that sits flush with the floor when the bolt is retracted, preventing dirt, pet hair, and floor-wash water from filling the hole.
Drilling for Depth: Ensure you drill the hole in the floor or frame slightly deeper (approx. 5mm) than the actual pin. This ensures that any minor debris at the bottom won’t prevent the Flush Fitting Pins from sitting perfectly flush with the surface.
Finish Matching: Always match the finish of the pin to the flush bolt itself. While the Flush Fitting Pins is small, a mismatched finish (e.g., a brass pin with a stainless steel bolt) is a common oversight that can detract from a high-end architectural finish.

These Flush Fitting Pins for casement stays are designed to provide a secure and reliable fixing point for your window hardware. Supplied as a convenient pack of 2, they are crafted from strong and durable materials to ensure long-lasting performance. The flush design allows for a neat and low-profile installation, making them an excellent choice for maintaining a clean and unobtrusive appearance on your windows. Suitable for both traditional and modern interiors, these Flush Fitting Pins are an essential accessory for ensuring the smooth operation of casement stays.

Easy to install and built for everyday use, these Flush Fitting Pins offer a dependable solution for securing casement windows in place. Their robust construction ensures resistance to wear and tear, while the flush finish helps them blend seamlessly with the window frame. Ideal for home or commercial properties, this pack of 2 flush fitting pins combines practicality, strength, and subtle design to deliver long-term functionality and a professional finish for your window fittings.