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All-Metal Prevailing Torque Nuts Wholesale

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All-Metal Prevailing Torque Nuts Manufacturers

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Introduction

All-Metal Prevailing Torque Nuts are high-performance self-locking fasteners designed to resist loosening caused by severe vibration and extreme thermal cycles. Unlike Nyloc nuts, these nuts have no plastic inserts and achieve their locking action through an engineered deformation (usually an elliptical top or slotted collar) that creates friction on the mating bolt threads. This all-metal construction makes them mandatory for high-temperature applications (up to 600鈭楩 or higher) where polymer inserts would melt or degrade, such as exhaust systems, furnaces, and engine bays.

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Specification

Locking Mechanism

All-Metal Frictional Deformation
Common Styles

Stover, Marsden, Reversible (Center-Lock)
Material Options

Carbon Steel (Grade C), Alloy Steel, High-Temp Stainless
Temperature Range

High-Temp (e.g., up to 600鈭楩)
Standard

DIN 980 V, IFI-100/107

Applications

  • Automotive Exhaust Systems: Used near the engine and catalytic converter where temperatures are high.

  • Industrial Furnaces and Ovens: Securing internal components in high-heat environments.

  • Aerospace and Aircraft: Used in engine mounts and airframe sections prone to thermal cycling.

  • Vibrating Machinery: Critical industrial equipment like rock crushers or large compressors.

Advantages

  • High Heat Tolerance: Performs reliably at temperatures far exceeding the limits of plastic insert nuts.

  • Excellent Reusability: Maintains a higher percentage of original prevailing torque after multiple installation cycles than nylon-based nuts.

  • Strong Vibration Lock: Provides dependable frictional resistance across the entire length of engagement.

  • Uniform Height: Many designs maintain the same overall dimensions as a standard hex nut.

Payment & Shipping

We accept payments via TT for immediate release and offer customized consignment stocking. These nuts require specific packaging to prevent damage to the locking collar during transit. Certified material reports are provided with all high-grade alloy shipments.

FAQ

  • Q: How does an all-metal nut lock the bolt without an insert?
  • A: The nut is manufactured with a slightly distorted thread form, usually by crimping the top collar into an elliptical shape or by pressing a series of small indentations (slots). When the bolt is installed, it forces the distorted metal back into shape, creating the necessary prevailing torque (friction) to resist vibration-induced rotation.
  • Q: Do I need to use specialized tools for installation?
  • A: No. Standard wrenches are used. However, because the prevailing torque adds resistance, a power tool (like an impact wrench) is usually required to run the nut down quickly. Always verify the remaining torque to ensure the required clamp load is achieved.

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Steady-Ind

Steady-Ind - Pursue quality and cast high-quality goods.

STEADY manufactures over a thousands different types of blind rivet nut in steel,aluminium and stainless steel,thread size from M3-M16 in metric and UNC #6-32 to UNC 1/2-13 in inch. High advantage in stainless steel blind rivets both for open and sealed type, mutigrip,monobolt and other structural rivets. As China All-Metal Prevailing Torque Nuts Manufacturers and All-Metal Prevailing Torque Nuts Factory, we focus on "one stop shopping" and with advantage of large production capacity , consistent quality, competitive prices, punctual delivery and goods serverices before and after sales, STEADY has become one of the leading blind fasteners manufacuture & supplier in Asia.

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