Head & drive guide
Use the catalogue illustrations to identify head, drive and under-head forms when preparing an enquiry. Confirm the exact shape with a drawing or sample reference.
Technical Guides
Use these illustrated screw references to describe the configuration in your enquiry. Start with the head and drive guide for head profiles and drive forms, or the point and thread guide for point shapes and thread arrangements. The illustrations are reference forms; confirm exact dimensions and application requirements with your drawing.
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Read article: Head & drive guide
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Point & thread guide
Read article: Point & thread guideCompare the illustrated point and thread forms and describe the required screw configuration. The source drawings are references and are not to scale.