Oct 20, 2026Quality Control
Torx vs Phillips vs Hex: Picking the Right Drive
Compare Torx, Phillips and hex socket screw drives, and learn how to choose the right drive type for assembly quality, torque control and cost.
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Quality control guides and industry information
Practical notes on fasteners, CNC parts, materials, finishes and sourcing.
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Oct 20, 2026Guides
Thread-Forming Screws for Plastic: What Buyers Should Check Before Sourcing
Learn what buyers should check when sourcing thread-forming screws for plastic, including thread geometry, pilot holes, WN1452 and EJOT PT-type applications.
Oct 20, 2026Quality Control
How to Specify Dowel Pins
A practical dowel pin spec guide: OD tolerance (h6), hole fits (H7), chamfers, hardness and finish. Avoid stuck pins and ensure repeatable alignment in fixtures.
Oct 20, 2026Guides
How to Send a Clear RFQ for Custom Screws
Learn what buyers should include in a custom screw RFQ, from drawings and material to surface finish, quantity, application and packaging requirements.
Oct 20, 2026Guides
How to Send a Clear RFQ for CNC Turned Parts
Learn what information buyers should provide for CNC turned parts RFQs, including drawings, materials, tolerances, surface finish, quantity and packaging requirements.
Oct 20, 2026Guides
When Should You Use SEMS Screws Instead of Separate Washers?
Learn when to use SEMS screws instead of separate screws and washers, and how they can improve assembly speed, quality control and production efficiency.
Oct 20, 2026Quality Control
Self-Tapping vs Machine Screws: Getting the RFQ Right
Learn the difference between machine screws and self-tapping screws, and what details buyers should provide for an accurate screw quotation.
Oct 20, 2026Quality Control
How to Request a Fast Quote for Custom Fasteners and Machined Parts
RFQ checklist for fast quotes: drawings, sizes, material, finish, tolerances, quantity breaks, packaging, certificates and delivery terms. Copy-paste template inside.
Oct 20, 2026Quality Control
How to Quote Custom Screws from Photos or Samples
Learn what information is needed to quote custom screws from photos or samples, and how Hextro helps buyers move from rough reference to practical quotation.
Oct 20, 2026Quality Control
Nylon Insert Lock Nuts vs All-Metal Lock Nuts: Which One Should You Use?
Compare nylon insert lock nuts and all-metal lock nuts, and learn which locking nut is better for vibration, temperature, reuse and industrial assembly.
Oct 20, 2026Quality Control
Metric vs Inch Fasteners: A Quick Standards & Conversion Guide
Understand metric vs inch fasteners fast. DIN/ISO vs ANSI/IFI naming, thread pitch vs TPI, common equivalents and tips to avoid mismatch in assemblies.
Oct 20, 2026Quality Control
Locking Methods: Split Lock Washers, Star Washers, Nylon-Insert Nuts or Patch?
Compare split lock washers, star washers, nylon-insert lock nuts and patch screws, and choose the right locking method for vibration and assembly needs.
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