Matthews 1/4" to 5/8" Adapter Tweet Description The Matthews 1/4" to 5/8" Adapter is a pin used to convert 1/4" tapped threading to 5/8". Details Additional Category Tags: Mounting Hardware, Studs, Receptors & Pins Category: Lighting & Studio Manufacturer Catalog Number: 20027-10 Model: Matthews 20027-10 Product Manufacturer: Matthews Subcategory: Light Stands & Mounting