"Essential Fastener Insights: FAQs and Best Practices"
Release Time:
Aug 15,2025
Q: Can't tell bolts from screws?
A simple rule: Components used with nuts are typically bolts. Those driven directly into a material (pre-tapped holes or self-forming threads) are usually screws. Note: Some ambiguity exists (e.g., hex head machine screws).
Q: Are washers optional?
Absolutely not!
Flat washers protect surfaces and distribute clamping pressure.
Spring washers maintain tension against loosening.
Neglecting washers risks: Connection failure, surface crushing, or fastener fracture.
Q: Is tighter always better?
A dangerous misconception!
Over-tightening (excessive preload) causes:
Bolt stretching/rupture (plastic deformation)
Crushed components (e.g., aluminum alloys, plastics)
Stripped threads
Insufficient preload causes: Connection loosening and failure.
Critical applications (e.g., wheel hubs, engine blocks) require calibrated torque wrenches.
Q: Why do threads strip after few uses?
Potential causes:
Poor thread quality
Overly soft material
Cross-threading (misaligned insertion)
Thread wear from repeated use
Thread damage from excessive force
Q: How to handle rust?
Light rust: Treat with rust remover/wire brush.
Severe corrosion or critical joints: Replace immediately.
Prevention is key: Select corrosion-resistant materials/surface treatments for the operating environment.
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