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M20-2.5 x 45, Durlok® Hex Serrated Flange Bolt, Full Thread, Alloy Steel, Class 12.9, Black Oxide

Unbrako Part No. B405793

Specs

Item Durlok® Self-Locking, Anti-Vibration Bolt
System of Measurement Metric
Diameter M20
Thread Pitch 2.5
Length 45
Thread Style Fully Threaded
Material Alloy Steel
Fastener Strength Class 12.9
Finish Black Oxide
Thread Direction Right Hand
Standard Meets or Exceeds ISO 898-1; ANSI B1.13M; ISO 261; ISO 262
Pack Type Bulk

Features

Durlok® self-locking, anti-vibration bolts are designed with long, ramp shaped, radial teeth blended evenly into a smooth slightly conical outer surface. The plain outer bearing ring prevents excessive penetration into the bearing material. Together, these aspects create only moderate edge pressure just sufficient enough to guarantee self-locking. The Durlok Bolt is suitable for multiple re-use because the serrations do not groove the clamped material and maintain locking ability. Moreover, oil or other lubricants, organic or inorganic coatings, will not adversely affect the locking ability.

  • For use with Durlok® Nut. Durlok® 12.9 Bolts & Nuts are designed for high-performance critical applications, that do not require a washer, to guarantee self-locking.
  • Will not loosen or unscrew even under the most severe transverse jarring and vibration.
  • Reusability is guaranteed with locking ability maintained.
  • Unique head design ensures absence of ‘notch-effect’ after assembly.

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