Spindle Adapter Sleeve – 7mm to 8mm Conversion

SKU: 524624

$1.24 - $1.24

$1.24

$1.24 - $1.24

$1.24

Function: Converts 7mm spindle to 8mm (1/4" to 5/16")
Design: Simple square metal sleeve that slides over existing spindle
Material: Raw steel construction
Easy to fit
Sold individually

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Product Details

Spindle Adapter Sleeve – 7mm to 8mm (524624)

This spindle adapter sleeve provides a simple solution for converting a 7mm spindle to 8mm. The square metal sleeve slides easily over an existing 7mm spindle, increasing its width to accommodate hardware designed for 8mm spindles.

Made from raw steel, this adapter offers durable construction that maintains a secure fit between your spindle and door hardware. The straightforward design requires no special tools or modifications—simply slide the sleeve over the spindle for an instant size conversion.

Technical Information

Converts: 7mm to 8mm (1/4 inches to 5/16 inches)
Material: Raw steel
Shape: Square sleeve

Priced and sold individually.

Fill out our MPL form or call us to ensure accurate purchasing and correct fit.

Frequently Asked Questions

How do I use this spindle adapter?

Simply slide the square metal sleeve over your existing 7mm spindle to increase its width to 8mm, allowing it to fit hardware designed for 8mm spindles.

What is this adapter made of?

This adapter sleeve is made from raw steel for durable, long-lasting performance.

Shipping & Returns

At mplocks.com, we strive to provide fast, reliable, and fairly priced shipping. Below you'll find our standard shipping details, important notes, and packing practices.

Standard Shipping Rates

Shipping applies to the contiguous U.S. (orders to Alaska and Hawaii require a custom quote):

$11.95 – USPS First Class (5–10 business days)
$12.95 – USPS Priority Mail (3–6 business days)
$19.50 – UPS Ground (2–5 business days)

📦 Rates typically cover packages up to 4 lbs. Oversized or heavier items may incur additional charges.

Processing Times

Most orders ship within 2–5 business days of purchase.
If your order is delayed, we'll notify you promptly.

Important Notes on Shipping Costs

Certain items may have higher shipping costs due to weight or dimensions.
We reserve the right to adjust shipping fees. If this applies to your order, we'll contact you for approval before proceeding.
If you choose not to accept revised shipping charges, we may cancel your order at our discretion.

Backorders & Billing

All credit cards are charged within 72 hours of purchase.
This includes orders that contain backordered items.

Our Packing Standards

We take great care to ensure your order arrives safely and securely.

Whenever possible, we use recycled paper, cardboard, and eco-friendly packaging materials.
Many of our products are purchased in bulk and may not include retail packaging or barcodes. In these cases, items may be repackaged in secure, plain boxes.
Hardware ships in retail or contractor-grade packaging when available.
Every item is inspected prior to shipping, and additional packing is used if needed.

Quality Guarantee

All items are brand new unless specifically noted. If something is not right, we'll work to make it right—through repair or replacement.

⚠️ Please note: shipping costs are non-refundable.

If you have questions about shipping rates, timelines, or packaging, please contact us before placing your order.

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