From the screw type oil expeller in ancient Greece to space exploration, how did fasteners "fasten" human civilization?

Time Gear: The Past and Present of Fasteners

In 400 BC, the Greek mathematician Alkutas first described the principle of the screw. By the first century AD, people in the Mediterranean region had ingeniously applied wooden screws in screw presses - pressing olive oil from olives and extracting juice from grapes to make wine. These wooden screws became witnesses to the early mechanical civilization of mankind.

The manufacturing of weapons in the Middle Ages promoted the development of metal screws. It is clearly recorded in the German manuscript of "The History of the Bora Firearm" from 1475 that the earliest matchlock guns fixed the bolt with grooved screws to resist the vibration caused by the continuous detonation of gunpowder. At that time, the craftsmen could not have imagined that this design would solve the problem of loose bolt and unexpectedly promote the technological innovation of fasteners.

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Solve Client Pain Points with Precision

“Bolts loosen under vibration?”

• Solution: Ditch standard washers!

• Recommended Tech: Nord-Lock wedge-locking washers, Spiralock® (SPL) self-locking nuts, or pre-applied micro-encapsulated adhesive threadlockers.

• Critical Step: Always tighten with a calibrated torque wrench!

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• “Coastal projects: How to fight salt corrosion?”

• Material Matters: Opt for 316 stainless steel. Extreme environments? Choose super austenitic steels (e.g., 254SMO) or Hastelloy®.

• Coating Power: Apply Dacromet® (zinc flake), hot-dip galvanizing, or zinc diffusion coatingsas "anti-corrosion armor".

• Gold Standard: Specify marine-certified fasteners (e.g., ASTM F1136) for guaranteed performance.

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• “Stuck with rusted/stripped screws?”

• Rusted Fix: Spray penetrating fluid (e.g., WD-40) → Tap to loosen → Carefully unscrew. Stubborn cases? Use specialized loosening compounds or localized heat.

• Stripped Rescue: Rubber band trick, screw extractor kits, or nut welding.

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  “Sudden bolt failure causing losses?”

• Failure Culprits:

• Overload: Exceeds design strength.

• Fatigue (Most Common): Cracks from cyclic stress.

• Hydrogen Embrittlement: Unremoved hydrogen post-electroplating in high-strength steel.

• Stress Corrosion Cracking: Deadly combo of corrosion + tensile stress.

• Prevention Protocol:

• Precise Selection: Match strength, material, and spec to application.

• Correct Installation: Use torque control, avoid misalignment.

• Routine Checks: Periodic torque audits and visual inspections.

• Critical Process: Mandatory hydrogen baking for plated high-strength bolts!

  
  

  
  

● The "Fastener Black Technology" Hidden beside You

Ball Lock Pin

Indexing Plunger

Indexing Plunger

Indexing Plunger

Ball Rollers

●Fastener-Common Myths Debunked

❌ “Tighter = Safer?” → Over-tightening causes bolt stretching or fracture. Precision torque is key.
❌ “Stainless Steel = Rust-Proof?” → Standard grades (e.g., 304) corrode in harsh environments (e.g., coastal areas). Upgrade to 316+ or specialty alloys!
❌ “Stripped screw? Just force it!” → Brutal force ruins threads. Use extractor tools or reverse-thread drill bits.

●Application 

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• Turn Fastener Challenges into Solutions!
  From intriguing trivia to critical engineering fixes,VEICH is your trusted global partner! We deliver:

• Vast Inventory: Stocking everything from basics to high-strength, corrosion-resistant, vibration-proof specialty fasteners.

• Engineering Support: Dedicated technical team for selection guidance & failure analysis.

• Certified Quality: Compliant with ISO, ASTM, DIN, and more.

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• Act Now!

• TEL: +86 13434407241

• Email: wangjiali@veichu.com

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• #Fasteners #BoltingSolutions #VibrationProof #CorrosionResistant #StrippedScrew #BoltFailure #IndustrialHardware #Engineering #Manufacturing #GlobalSupply