Vnail #10mm for Photo Framing Joiner

A 10mm V-Nail (also known as a wedge or biscuit joiner) is a specialized fastener used in the picture framing industry to securely join the mitered corners of a frame. Key DescriptionDesign & Function: These fasteners are V-shaped and made of hardened steel. When driven into the back of two frame sticks, the V-shape pulls the joint tightly together as it enters the wood grain, ensuring a gap-free and permanent corner.Size (10mm): This height is one of the most common sizes used in framing. As a general rule, the V-nail should be approximately 50% to 75% of the thickness of the frame moulding to provide maximum holding power without piercing the front face.Application: They are used with an underpinner (manual, pneumatic, or electric), which drives the nail from the bottom up into the frame. In deep frames, 10mm nails can be stacked (e.g., two 10mm nails to reach a 20mm depth) to strengthen the joint.Material Types:Normal/Softwood: Designed to cut across the grain in softer woods like pine or obeche.Hardwood: Feature a different grind (angle) to separate the wood grain as they enter, preventing the wood from splitting in dense materials like oak, maple, or ash.Compatibility: 10mm V-nails are often available in different widths, such as the UNI type (10.3 mm) or AL type (10.7 mm), and must match the specific underpinner brand being used (e.g., Alfamacchine, AMP, or Cassese).