M4 Spyder Insert Nuts (Jack) Metric Steel Bright Zinc Plated

M4 Spyder Nuts

M4 Spyder Nut (Jack), known as a Spyder Nut because of its spider like design when installed. A versatile insert nut for brittle, thin, or soft, materials. Often used for clamping two pieces of metal together.

The Spyder Nut (Jack) is placed into a pre-drilled hole and when tightened the body of the nut collapses on the blind side of the material forming four splayed legs.

These collapsed legs on the inside / blind side of the materials surface allow for a secure and reusable threaded insert.

Used by DIY enthusiasts and professionals alike for joining thinner sheets of material together or to install a threaded insert into thin material.

Insert Nut (Jack) Specifications:

• Head diameter (D): 12.4mm
• Head height (HH): 1.6mm
• Length (L): 16.8mm
• Grip depth (GD): 0.38 - 4.75mm approx.
• Drill Hole Size (HS): 8mm
• Head type: Flat
• Threaded diameter: M4 - 4mm

Quantities start from just one to as many as you require with bulk price discounts. To see our full collection of Spyder insert nuts (Jack) click here.

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