Worldwide express shipping
Worldwide express shipping
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SK and SHF shaft bearings: types, mounting and compatibility
Published : 2026-05-15 - By DHM | Categories : BasicsSK open, SHF flanged, KP with bearing: how to choose the right bearing for linear shafts and rotating screws.
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Bolts, tie rods and threaded rods: how to make structural joints
Published : 2026-05-13 - By DHM | Categories : BasicsBolted joints, threaded rod anchors and profile angles: structural fastening techniques compared.
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Bolt strength classes: 4.8, 8.8, 10.9, 12.9: what they mean
Published : 2026-05-11 - By DHM | Categories : Basics4.8, 8.8, 10.9, 12.9: How to read the numbers on the screw head and choose the right class for each load.
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Conductive and ESD-safe filaments for 3D printing: electronic applications
Published : 2026-05-08 - By DHM | Categories : BasicsElectrostatic discharge protection with carbon-filled filaments. Electronic applications and printing tips.
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Washers and spacers: types, sizes and selection criteria
Published : 2026-05-06 - By DHM | Categories : BasicsFlat, grower, Belleville, wide and spacer: each washer has its role. Size chart and selection guide.
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Hardened and hardened chrome-plated shafts: when they are needed and how to choo
Published : 2026-04-28 - By DHM | Categories : BasicsHardness 60-62 HRC and g6 tolerance: when and why they are needed for linear ball bushings, CNC and professional printing.
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3D printing nozzles: materials, diameters and when to replace them
Published : 2026-04-17 - By DHM | Categories : BasicsBrass, hardened steel or ruby? 0.2 or 0.8 mm? Complete guide to nozzles with table and wear marks.
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Printing plates: PEI, glass and flexible steel compared
Published : 2026-04-10 - By DHM | Categories : BasicsSmooth PEI, textured PEI, glass: which surface for which material? Comparison of adhesion and maintenance tips.
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MGN9 and MGN12 linear slides: how to choose the right size
Published : 2026-04-03 - By DHM | Categories : BasicsMGN9 or MGN12? DHM or DHM pro? How to choose the right linear guide for 3D and CNC printers.
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Trapezoidal screws vs. ball screws: which one to choose
Published : 2026-04-01 - By DHM | Categories : Basics30% vs. 95% efficiency, cost, self-locking: comparison of trapezoidal and ball screws for CNC.
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Threaded rods: a guide to materials, strength classes and applications
Published : 2026-03-30 - By DHM | Categories : BasicsGalvanised steel, stainless steel A2 and A4, classes 4.8-12.9: A complete guide to threaded rods for tie rods and joints.
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Cylindrical, countersunk and pan head screws: selection guide
Published : 2026-03-23 - By DHM | Categories : BasicsDIN 912, DIN 7991, ISO 7380: three heads compared. When to use which for perfect mechanical fasteners.





