Value Collection 526058PS Hex Jam Nut M20 X 2.50 Grade 2H

Product Description

The VALUE COLLECTION 526058PS is an M20 x 2.50 hex jam nut manufactured from Grade 2H steel with a zinc-plated finish. Jam nuts are thin hex nuts used primarily as locknuts, threaded against a standard nut to prevent loosening under vibration or dynamic loads. This nut features a right-hand thread, measures 30 mm across flats, and stands 10 mm tall. It conforms to DIN 439 and ISO 4035 fastener standards, making it a recognized, interchangeable hardware component for industrial and mechanical assembly work. Tradespeople and maintenance technicians select jam nuts when securing threaded rod, adjusting tension assemblies, or locking a primary nut in place on bolted connections.

This jam nut is suited for use in mechanical assemblies, equipment maintenance, plumbing rough-in, electrical panel support structures, HVAC equipment mounting, and general trade fabrication wherever an M20 x 2.50 coarse-thread jam nut is specified. The zinc plating provides corrosion resistance appropriate for indoor and light-duty outdoor applications. It is sold individually but carries a minimum order quantity of 5 units.

Key Features

• M20 x 2.50 right-hand thread — standard coarse metric pitch
• Grade 2H steel construction meets DIN 439 and ISO 4035 standards
• Zinc-plated finish for corrosion resistance in general-service environments
• 30 mm across flats — accepts standard metric hex wrenches and sockets
• Low-profile 10 mm height typical of jam nut design for locknut applications
• Does not meet military specifications — standard commercial-grade fastener

Compatibility

Designed as a standard DIN 439 and ISO 4035 M20 x 2.50 hex jam nut compatible with any M20 coarse-thread fastener assembly requiring a thin locknut.

Installation Notes

Installation is performed by hand and with a standard metric wrench or socket. Thread the jam nut onto the fastener and torque it against the primary nut to create a locking pair — do not substitute a jam nut for a full-height load-bearing nut in primary clamping applications. Follow applicable mechanical and structural codes for the specific assembly. Ensure mating threads are clean and free of debris before installation.