SUPERBOLT® Flexnuts

Standard Range

Technical Data
  • property class: about 8
  • temperatures:
    –10 to +250 °C
  • max. bolt stress:
    approx. 450 to 700 N/mm2; depending on size
  • flexible up to about 600 N/mm2
  • max. values valid for permanent bolting applications, incl. reaction forces

 Data sheet
General Description

SUPERBOLT® Flexnuts of the SX8 Series are able to flex elastically. Under load SUPERBOLT® Flexnuts flex out at the bottom and in at the top. This helps relieve stress concentrations and increases the fatigue life of the bolt. Therefore, SUPERBOLT® Flexnuts are used for applications where boltings are in danger of breaking due to fatigue.

SUPERBOLT® Flexnuts are reactive nuts only. They may not be torqued.
Applications:

Boltings with short clamping lengths

Available upon request:

  • inch threads (UN and Whit)
  • D > M160
  • other sizes and specials
  • anti-corrosion protection
  • special materials
SUPERBOLT® products are protected by one or several patents (US patents: RE 33490; 4,846,614; 5,083,889; 6,199,453; 6,381,827; 6,112,396; 6,263,764) and corresponding foreign patents, other patents pending. SUPERBOLT® products are also covered by trademark rights.