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M3 Smooth Allen Socket Head

Steel Class 8.8, Yellow Zinc

DIN 912

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Detail & Specs

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M3 Metric Allen Socket "Smooth" Head Bolt, Yellow Zinc Plated

Class 8.8 / Full Head Height

Head Style: Smooth

Specialty Yellow Zinc Plated finish provides corrosion resistance and is commonly used in European automotive restoration, specifically Porsche, Volkswagen, Mercedes, etc.

Socket head bolts are great for limited space installation areas. An allen wrench is used to install these screws, allowing access into tight locations where a traditional external hex drive bolt would not fit.

Partially threaded socket cap bolts have an unthreaded length under the head that is stronger than the threaded portion of the bolt. The unthreaded / threaded length dimensions vary by diameter. Fully threaded socket cap screws are meant to engage the entire length with a tapped hole.

These bolts can be used with many different styles of locking and non-locking nuts, tightly clamping together whatever the cap screw is being used to secure.

Alternative Specification
ISO 12474

Special Order Variations
Additional Lengths: M3X20

Additional Finishes: 8.8 Clear Zinc Plated