ATTENTION:  We will be closed for Winter shutdown starting Saturday 12/23/23 returning Tuesday 01/02/24.

The Original Instant Thumbscrew

The Shear-Loc process is a unique and cost effective way to convert standard socket head cap screws into instant thumbscrews.

For over 50 years we’ve been dedicated to producing high quality products right here in the USA and distributing them worldwide.

We offer 10 different styles with 5000+ combinations to meet the needs of your application.

Test before you invest. Contact us for FREE samples!

Product Lines

Click the reference guide above for a printable PDF.

Fill out the form below to receive a quote.

Questions? Call 1-800-775-5668

Or email