NEUTRAL Hex Nut DIN2510NF M45 40CrMoV4-6

Generic High-Strength M45 Hex Nut

Description

This is a high-quality M45 hexagonal nut, manufactured in accordance with the German DIN 2510 NF standard. It is constructed from 40CrMoV4-6 (material number 1.7711), a high-strength, heat-resistant steel alloy, making it perfectly suited for demanding industrial applications involving high temperatures and pressures. The nut is finished with a yellow zinc passivated coating for superior corrosion resistance.

Specifications

• Standard: DIN 2510 NF
• Thread Size: M45
• Material: 40CrMoV4-6 (1.7711) Chrome-Moly-Vanadium Steel
• Coating: Yellow Zinc Passivated
• Application: High-pressure flange connections, turbines, pressure vessels

Label Info

• Item Number: 100882
• Description: HEX NUT 40CrMoV4-6 M45 DIN2510NF

Application

Designed specifically for use with stud bolts in flanged connections, as specified by DIN 2510. Common industries include power generation, oil and gas, chemical processing, and heavy engineering where joint integrity under extreme conditions is critical.

CO2 Impact

Choosing this surplus component prevents the manufacturing of a new one, saving an estimated 3.0 kg of CO2. This is comparable to the emissions from driving a car for 15 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the significance of the material 40CrMoV4-6 (1.7711)?

This is a high-strength, heat-treatable chromium-molybdenum-vanadium steel alloy. It’s specifically designed for components subjected to high temperatures (up to around 540 deg C) and high tensile stress, making it ideal for applications like steam turbines, pressure vessels, and chemical reactors.

What is the correct tightening procedure or torque specification for a DIN 2510 M45 nut?

The exact torque specification is not defined by the nut itself but by the application’s engineering requirements. It depends on the stud material, lubricant used (e.g., anti-seize compound), and the required preload for the gasketed joint. Always refer to the assembly documentation provided by the equipment manufacturer for the correct torque value and tightening sequence.

Does the yellow zinc coating affect the nut’s performance or thread friction?

Yes, the yellow zinc passivated coating primarily provides corrosion resistance. However, any coating will affect the coefficient of friction of the threads. This friction coefficient is a critical variable in torque calculations. It’s important to use the friction coefficient specified by the fastener manufacturer or the assembly designer, especially when using torque-based tightening methods.

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Last Update: Friday, March 13, 2026