The blocks have threaded and unthreaded holes, but the screws do not go through the unthreaded holes. Block-to-block threads don't line up exactly, so you end up with a gap when trying to tie two blocks together.
12X9X3 Inch Granite Surface Plate With No Ledge - Perfect For Precision Measurement
9 Review
π§ Calibration of American Weigh Scales 500WGT for Optimal Performance
4 Review
Car seat JUNION Ebby group 0+/1/2/3 (0-36 kg), Isofix, dark gray
13 Review
π Accurate Truweigh Calibration Weight Precision 6 Piece Set: For Precise Measurements
5 Review
π Dioxide Controller for Digital Gas Monitoring
5 Review
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review
π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review