M39

Double Stack Self-Locking Anti-Loosening Washers Belleville Washers Lock-washers - Vibration-Resistant Locking Fasteners for Automotive, Industrial Machinery, Construction Equipment & Maintenance

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R 489

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Description

Engineered with a double-layer self-locking design to create irreversible friction, ensuring bolts stay securely tightened even under extreme vibration, heavy loads, or thermal expansion.
Choose between corrosion-resistant stainless steel for harsh outdoor/chemical conditions or Dacromet-coated 65Mn steel for superior rustproofing and 500% longer fatigue life compared to standard washers.
Covers 98% of industrial fastener needs, from small precision equipment (M3) to heavy-duty construction machinery (M56), eliminating the hassle of sourcing multiple washer types.
Conical shape enhances elastic preload distribution, absorbing shocks and compensating for material relaxation to maintain tension 3x longer than flat washers.
DIN25201 standards, trusted for automotive drivetrains, CNC machine bases, bridge bolt connections, and high-speed rail track fastening systems.

Technical Specifications

Manufacturer

Generic

Model

chT008

Color

65mn

Size

M39

Height

0.3 cm

Length

2.5 cm

Width

2.5 cm

Weight

0.2 kg

Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.