Nord-Lock, Inc. Flexnut Standard SX8 Series

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Flexnut Standard SX8 Series -  - Nord-Lock, Inc.
Clinton, PA, United States
Flexnut Standard SX8 Series
Flexnut Standard SX8 Series
Superbolt Flexnuts are used in combination with Superbolt tensioners and are designed to flex out at the bottom and flex in toward the top of the nut. This distributes the bolt load along many threads, adds elasticity, and prevents stress concentrations in the first few threads. For through hole applications we have developed the Superbolt flexnut, which is a reactive nut that is able to flex elastically. Putting a Flexnut gives the same advantages as the MJT on the reactive side. Under load they flex at the bottom and at the top. This helps relieve stress concentrations and increases the fatigue life of the bolt. Since flexnuts are reactive nuts to be used opposite our tensioners, they are never torqued directly to achieve preload. Benefits: Under load they ensure an equal load distribution on the thread of the bolt/stud. Adds elasticity in the joint. Increases the fatigue life of the bolt / stud. Selection Guide: SX8 – Standard flexnut Dimension range: M20-M160 (3/4′ – 6′) Approx. bolt stress depending on size: 450 to 700 N/mm2 (60 to 100 ksi) Temperature range: -10 to 250ºC (0 to 500ºF) Surface treatment: optional Application samples: Reactive nut for through hole applications. Adds elasticity to bolted joints. Highly recommended for short clamp lengths. Notes: In combination with MT nut-style tensioners or SB8 bolt-style tensioners.

Superbolt Flexnuts are used in combination with Superbolt tensioners and are designed to flex out at the bottom and flex in toward the top of the nut. This distributes the bolt load along many threads, adds elasticity, and prevents stress concentrations in the first few threads.

For through hole applications we have developed the Superbolt flexnut, which is a reactive nut that is able to flex elastically. Putting a Flexnut gives the same advantages as the MJT on the reactive side. Under load they flex at the bottom and at the top. This helps relieve stress concentrations and increases the fatigue life of the bolt. Since flexnuts are reactive nuts to be used opposite our tensioners, they are never torqued directly to achieve preload.

Benefits:

  • Under load they ensure an equal load distribution on the thread of the bolt/stud.
  • Adds elasticity in the joint.
  • Increases the fatigue life of the bolt / stud.

Selection Guide:

  • SX8 – Standard flexnut
  • Dimension range: M20-M160 (3/4″ – 6″)
  • Approx. bolt stress depending on size: 450 to 700 N/mm2 (60 to 100 ksi)
  • Temperature range: -10 to 250ºC (0 to 500ºF)
  • Surface treatment: optional
  • Application samples: Reactive nut for through hole applications. Adds elasticity to bolted joints. Highly recommended for short clamp lengths.
  • Notes: In combination with MT nut-style tensioners or SB8 bolt-style tensioners.
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Technical Specifications

  Nord-Lock, Inc.
Product Category Nuts
Product Name Flexnut Standard SX8 Series
Type Hex Nut
Size 3/4" (optional feature); 7/8" (optional feature); 1" (optional feature); 1 1/8" (optional feature); 1 1/4" (optional feature); 1 3/8" (optional feature); 1 1/2" (optional feature); 1 3/4" (optional feature); 2" (optional feature); 2 1/4" (optional feature); 2 1/2" (optional feature); 2 3/4" (optional feature); 1-5/8", 1-7/8", 3-1/4", 3-1/2", 3-3/4", 4", 4-1/4" 4-1/2", 4-3/4", 5", 5-1/4", 5-1/2", 5-3/4", 6"; M20 (optional feature); M24 (optional feature); M27 (optional feature); M30 (optional feature); M33 (optional feature); M36 (optional feature); M42 (optional feature); M48 (optional feature); M56 (optional feature); M64 (optional feature); M39, M45, M52, M60, M72, M76, M80, M90, M100, M110, M120, M125, M130, M140, M150, M160
Material Steel
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