Description
Full Product Description: DIN 439 Zinc-Plated Hex (Jam) Nut – M5–M12 (Packs of 100)
Overview
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Standard: Conforms to DIN 439 (withdrawn but compatible with ISO 4035) — a thin-profile “jam nut” ideal for space-constrained applications or locking assemblies.
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Packaging: Supplied in packs of 100, facilitating easy stock management and bulk ordering.
Material & Finish
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Material: Carbon steel (Grade 04–05) offers dependable strength and cost-efficiency.
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Coating: Zinc-plated (bright or blue-passivated finish) for moderate corrosion protection and a sleek appearance.
Dimensions & Specifications
These jam nuts are approximately half the height of standard hex nuts—ideal when thickness is critical.
Exact measurements vary by size; typical figures include:
| Thread Size | Width Across Flats (s) | Height (k) |
|---|---|---|
| M5 | ~8 mm | ~2.7 mm |
| M8 | ~13 mm | ~4 mm |
| M10 | ~17 mm | ~5 mm |
| M12 | ~19 mm | ~6 mm |
(Data from Kramp, summarized)
Features & Applications
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Space-Efficient: Compact dimensions make these ideal where standard nuts are too bulky.
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Locking Capability: Often used as a secondary nut (“jam nut”) to secure assemblies and prevent loosening due to vibration.
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Fast & Secure Installation: Standard hex shape for easy fitting with common wrenches.
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Versatile Usage: Common in automotive assemblies, machine gearboxes, clamps, and applications requiring a low-profile locking nut.
Suggested Website Product Listing
Title:
DIN 439 Zinc-Plated Hex Jam Nut – Metric M5 to M12 (Pack of 100)
Description:
Our low-profile hex jam nuts conform to DIN 439 / ISO 4035 and are plated with zinc for corrosion resistance. Available in metric sizes M5, M6, M8, M10, and M12, sold in packs of 100 for streamlined bulk handling.
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