OEM-spec 3/4" Stover Lock Nut | Prevailing Torque Top Lock Nut

OEM-spec 3/4" Stover Lock Nut | Prevailing Torque Top Lock Nut

This 3/4" Stover-type lock nut is an OEM-spec replacement all-metal prevailing torque hex nut. Stover lock nuts use controlled distortion of the top threads (forming an elliptical profile) to create a locking action that resists loosening under severe vibration and shock loads — no nylon insert required, making them suitable for high-temperature applications. Stocked at AIM Rentals in Kelowna, BC and ships Canada-wide.

Specifications

• Part Number / Description: 3/4" Stover Lock Nut
• Type: Prevailing Torque Top Lock Nut (Stover-type)
• Thread Diameter: 3/4"
• Available Thread Pitches: 3/4"-10 (UNC Coarse) and 3/4"-16 (UNF Fine) — confirm before ordering
• Width Across Flats: 1-1/8"
• Grade: Grade C (IFI 100/107), designed for use with Grade 8 fasteners
• Material: Medium carbon alloy steel, through-hardened
• Finish: Zinc plated
• Branding: OEM-spec replacement (generic fastener standard)
• Stocked: Kelowna, BC, Canada

Fitment

The 3/4" Stover lock nut is a standard industrial fastener used widely across heavy equipment and construction machinery including excavators, wheel loaders, and agricultural equipment. It is not machine-specific — verify thread pitch (UNC 3/4"-10 or UNF 3/4"-16) and grade requirement against your assembly specifications before ordering. Contact sales@rentwithaim.ca with your application details.

FAQ

What is a Stover lock nut?

A Stover lock nut is a one-piece, all-metal prevailing torque hex nut with a conical top and flat bottom bearing surface. The locking action is created by controlled distortion of the top threads into an elliptical shape during installation, which grips the bolt threads without requiring a separate nylon or metallic insert. Widely specified for heavy equipment, agricultural machinery, and industrial applications per IFI 100/107 Grade C.

How does a Stover nut differ from a nyloc nut?

Unlike nyloc (nylon insert) lock nuts, Stover lock nuts are fully all-metal and can withstand temperatures up to 450°F (230°C). They are reusable and suitable for high-vibration and high-temperature environments where nylon inserts would fail.

What thread size should I order?

3/4" Stover lock nuts are available in coarse thread (3/4"-10 UNC) and fine thread (3/4"-16 UNF). Confirm your bolt thread pitch before ordering. Contact sales@rentwithaim.ca to specify.

Where is this stocked and how fast does it ship?

This lock nut is stocked at our Kelowna, BC location and ships Canada-wide. Orders placed before 2:00 PM Pacific Time typically ship the same business day.