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.
Articles
Quality control guides and industry information
Practical notes on fasteners, CNC parts, materials, finishes and sourcing.
Quality Control
16 stories
Read more
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, 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.
Oct 20, 2026Quality Control
Hextro Technology Launches New Website
Hextro Technology unveils a new website with faster navigation, clear categories, and a quick RFQ experience for fasteners and precision components.
Oct 20, 2026Quality Control
Quality Control
End-to-end quality control for fasteners and machined parts—IQC, IPQC, FQC/OQC, AQL sampling, calibrated gauges and full traceability on request.
Oct 20, 2026Quality Control
Guide: Taper vs Dowel vs Spring Pins-Which Pin Should You Use?
Compare taper pins, dowel pins and spring pins, and learn how to choose the right pin type for alignment, locking, vibration and assembly needs.
Oct 20, 2026Quality Control
Finishes for Fasteners: Zinc, HDG, Black Oxide or Stainless?
Compare zinc, hot-dip galvanizing, black oxide and stainless for corrosion resistance, appearance and cost in fastener selection.
Page 1 of 2