2-Piece Fastener Makes Set Screws Obsolete

Featured Product from Stock Drive Products & Sterling Instrument - SDP/SI

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Shaftloc® Fastening Device is Simply Superior!

Shaftloc® is a patented rotating component fastening device, manufactured by SDP/SI (ISO 9001 + AS9100D Registered). A surprisingly simple design, it eliminates all the disadvantages of traditional methods for fastening components to shafts.

The Shaftloc® Fastener is offered in a variety of styles, but they all feature a simple two-piece construction with corresponding male and female threads. The sleeves slide over the shaft on either side of the component to be secured. The threads are assymetrical so that the two sleeves wedge together around the shaft, holding the part in place between them. Hex heads make it easy to tighten the Shaftloc® sufficiently, and to unscrew it to make adjustments as needed.

Because of its uncomplicated design, the Shaftloc® Fastener is easy to install, adjust and is low cost. Since there are no set screws, it can be reused and adjusted many times over without damaging the shaft. The shallow angle of the thread produces large amplification of forces, resulting in substantial torque transmission capability between the component and the shaft.

Established 1950, SDP/SI provides engineered mechanical solutions for the aerospace, medical, and robotics industries through component options and custom design and manufacturing. Not limited to manufacturing parts; we also design, manufacture, and assemble custom subassemblies with world-class quality and reliability for all applications. As a precision gear and small mechanical component manufacturer we excel in every process: milling, turning, grinding, drilling, gear cutting, bevel gear cutting and assembly. We machine in a variety of materials and NADCAP and customer approved facilities are used for finishing and surface treatments.

Send an RFQ or Contact our Engineers, we can quote from a drawing or 3D CAD model.

We look forward to working with you!


SDP/SI - Stock Drive Products/Sterling Instrument, a Designatronics company
250 Duffy Avenue, Hicksville, NY 11801
Phone: (516) 328-3300; (800) 819-8900
www.sdp-si.com