DIN 7349 Thick Flat Washer

FULLERKREG supplies DIN 7349 thick flat washers across a full range of materials and surface treatments. DIN 7349 washers are specifically designed for use with bolts that have heavy-type spring pins (DIN 7346 / ISO 8752). Compared to standard DIN 125 flat washers, DIN 7349 washers feature a larger outer diameter and greater thickness, providing a wider bearing surface and superior load distribution in heavy-duty, high-vibration, and structural assemblies. All products are manufactured to strict DIN dimensional tolerances and are available for wholesale and bulk supply.

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Product Variants — Browse by Material & Finish

DIN 7349 Thick Flat Washer — Steel, Zinc CR3
Low carbon steel · Zinc electroplated, trivalent chromium passivation · M5–M24 · ≥72h salt spray · RoHS compliant · Blue-white bright finish

DIN 7349 Thick Flat Washer — A2 Stainless Steel (SUS304), Natural
A2 stainless steel (SUS304 / 1.4301) · Natural cleaned & passivated · M5–M24 · Excellent general corrosion resistance · Non-magnetic · Food-safe

DIN 7349 Thick Flat Washer — A4 Marine Stainless Steel (SUS316), Natural
A4 stainless steel (SUS316 / 1.4401) · Natural cleaned & passivated · M5–M24 · Marine-grade · Superior chloride & acid resistance · Mo 2–3%

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How to Choose the Right Grade

Application Environment	Recommended Grade
General indoor / light industrial	Steel Zinc CR3
Food processing, chemical, outdoor general	A2 Stainless Steel (SUS304)
Marine, coastal, seawater, strong acid / chloride	A4 Stainless Steel (SUS316)

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DIN 7349 Standard Overview

• Standard: DIN 7349
• Type: Thick flat washer — heavy type (larger OD & greater thickness vs. DIN 125)
• Designed for use with: Bolts with heavy-type spring pins (DIN 7346 / ISO 8752)
• Size range: M5 – M24
• All grades RoHS & REACH compliant

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DIN 7349 vs. DIN 125 — At a Glance

Feature	DIN 7349	DIN 125
Type	Thick / heavy-type flat washer	Standard flat washer
Outer Diameter	Larger	Standard
Thickness	Greater	Standard
Designed for	Bolts with heavy spring pins (DIN 7346)	General-purpose bolts & screws
Load distribution	Superior	Standard

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Product Photo Gallery

FULLERKREG DIN 7349 Thick Flat Washers — product range overview:

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Why Choose FULLERKREG?

• 🏭 Direct manufacturer — factory in China, no middlemen
• 📐 Strict DIN dimensional control — 100% inspection on critical dimensions
• 🌍 Global export experience — serving distributors in Europe, North America, Southeast Asia
• 📦 Flexible MOQ — small trial orders and large bulk shipments both welcome
• 📋 Full documentation — material certs, RoHS declarations, test reports on request
• ⚡ Fast lead times — standard sizes in stock, ready to ship

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FULLERKREG Fasteners — Precision DIN Standard Fasteners, Direct from Manufacturer.
For wholesale inquiries, technical questions, or custom orders, please contact our sales team.