M12 x 1.5 GM Metric Wheel Stud

These long metric competition wheel studs from Grayston, share the same M12 x 1.5 thread size as those more commonly associated with Ford models, but were devised as longer studs based on the larger hub spline on Vauxhall models. They are also often used on Ford's where the spline in the hubs or halfshafts are worn and the studs are loose. In this case you drill or ream out the holes to suit these larger splined studs. As for the Ford type studs these too are available two lengths, typically 13mm and 25mm longer than the OE fitments on many of the earlier GM Vauxhall models.

Ideal if you have wheels with a deeper centre hub or in conjunction with wheel spacers. They feature an M12 x 1.5mm pitch thread, with a 51mm or 63mm length from the underside of the head to the top of the thread. The splined section at the base of the stud, the part that is pressed into your hubs, has a 14.3mm diameter.

If you need help or are unsure if they are suitable, measure your existing studs to compare dimensions, then as required contact us via the 'Contact Us' form on the website or give us a ring.

• Longer 51mm or 63mm lengths, many nuts available to suit
• High tensile hardened steel suitable for Motorsport use
• Suitable for many European vehicles with a similar spline

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