Case Hardened Steel Geomet® Kinmar® Permanent Bolt

Product Details

Geomet® Plated Kinmar® Permanent Bolt

The ultimate high security patented one-way bolt.

This patented permanent bolt requires a matching driver socket for installation giving you guaranteed torque levels and can be re-torqued if required. Not governed by shear point and leaving no unplated surfaces, it leaves a clean smart finish.

  • Also stocked in; Case Hardened Steel Zinc Plated (CR-3)
  • Other materials and finishes available to order, subject to minimum order quantities

Security Rating Explained

Gauge Length Material Finish Driver Size Ref Small Box Qty
M8 25mm Case Hardened Steel Geomet® KM8P KMPM0825-GEO 100
M8 40mm Case Hardened Steel Geomet® KM8P KMPM0840-GEO 100


* indicates required

Hafren Fasteners will use the information you provide on this form to be in touch with you and to provide updates and marketing. Please let us know all the ways you would like to hear from us:

You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at We will treat your information with respect. For more information about our privacy practices please visit our website. By clicking below, you agree that we may process your information in accordance with these terms.

We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp's privacy practices here.