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Home > Tools & Hardware > Hardware Accessories > Spring > Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration thumbnail-3

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration thumbnail-4

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration thumbnail-5

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration photo-1

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration photo-2

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration photo-3

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration photo-4

Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration photo-5

Product Spotlights

Double-layer design provides superior anti-vibration performance compared to single spring washers. DIN 127b standard ensures dimensional accuracy. Black oxide finish offers corrosion resistance and professional appearance. Manufactured by a 1998-established factory with annual export US$5-10M. Customizable sizes and packaging available.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Mild steel

Function:

Other, Anti-vibration

Standard:

DIN 127b

Contact Supplier Request Quote Chat Now

Anping County Boli Hardware Wiremesh Products Factory

2Yrs

Payment & Shipping

Payment Methods:

Port of Shipment:

tianjin shanghai qingdao

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Other, Mild steel

Function Other, Anti-vibration

Standard DIN 127b

Finish Black oxide

Type Double-layer spring washer

Surface Treatment Black oxide coating

Application Industrial fastening, machinery

Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in high-quality fasteners and hardware products. With annual export value between US$5 million and US$10 million, we supply to global markets including North America, South America, Europe, Asia, and Oceania. Our Double-layer Spring Washer DIN 127b Standard Mild Steel Black Oxide Finish Anti-vibration is designed to provide reliable locking performance under dynamic loads, preventing loosening caused by vibration or thermal expansion.

This spring washer features a unique double-layer structure that increases elastic deformation capacity, offering superior anti-vibration protection compared to single-layer alternatives. Manufactured from high-quality mild steel with a black oxide finish, it provides excellent corrosion resistance and a professional appearance. The DIN 127b standard ensures dimensional accuracy and compatibility with metric bolts and screws.

Key Features & Technical Specifications

Double-layer design – Offers enhanced spring force and better load distribution, reducing the risk of loosening in high-vibration environments.
Material: Mild steel – Provides good strength and ductility, suitable for general industrial applications. Hardness can be customized upon request.
Finish: Black oxide – Also known as blackening, this coating provides moderate corrosion resistance, reduces glare, and improves surface lubricity.
Standard: DIN 127b – Conforms to German standard for spring lock washers, ensuring interchangeability and consistent performance.
Size range – Available in M3 to M24 metric sizes (other sizes available upon request).
Anti-vibration function – Effectively prevents bolt loosening caused by machine vibration, shock, or thermal cycling.
Easy installation – No special tools required; can be used with standard hex nuts and bolts.

Parameter	Specification
Material	Mild steel (C45, S45C, or equivalent)
Surface Finish	Black oxide (blackening)
Standard	DIN 127b
Hardness	44-51 HRC (typical, subject to thickness)
Thickness	Per DIN 127b (varies by nominal size)
Operating Temperature	-20°C to +120°C (for black oxide coating)
Packing	Bulk, poly bags, small boxes, or custom packaging

Benefits for Your Applications

Using our double-layer spring washer helps reduce maintenance downtime and improve equipment reliability. In automotive assembly, industrial machinery, agricultural equipment, and construction, the anti-vibration property ensures that fasteners remain tight even under continuous shock or oscillation. The black oxide finish not only protects against rust but also gives a uniform, non-reflective appearance preferred in many mechanical assemblies.

Compared to single spring washers, the double-layer design offers up to 50% more elastic recovery, meaning it can compensate for a larger amount of bolt relaxation. This is particularly beneficial in applications where temperature fluctuations cause expansion and contraction. Our washers are manufactured with tight tolerances to ensure consistent torque-tension relationships.

Company Trust & Credibility

Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer since 1998. Our annual export value of US$5–10 million reflects our ability to serve large-scale orders with consistent quality. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics to global customers. Our main markets cover North America, South America, Europe, Asia, Africa, and Oceania. We have a dedicated quality control team that inspects all products before shipment, and we offer customizable packaging and sizes according to customer requirements.

Contact us today for a quote or sample. Our team is ready to support your fastening needs with competitive pricing, reliable delivery, and professional service. Choose Boli Hardware for your next project.

Frequently Asked Questions (FAQ)

What is the difference between DIN 127a and DIN 127b spring washers?
DIN 127a has a square-cut end, while DIN 127b has a chamfered end. Both are used for locking, but DIN 127b is more common for general applications and provides slightly better load distribution.
Can these washers be used with stainless steel bolts?
Yes, but we recommend using compatible materials to avoid galvanic corrosion. If used with stainless steel, consider a stainless steel spring washer or a coating like zinc plating for corrosion protection.
Are these washers reusable?
Spring washers are generally designed for single use because they lose some elasticity after being compressed. However, in low-load applications, they may be reused. We recommend replacing them during maintenance for optimal performance.
What sizes are available?
We offer standard metric sizes from M3 to M24. Non-standard sizes and custom dimensions are available upon request, subject to minimum order quantity.
How should I store black oxide washers?
Store in a dry, cool environment away from moisture and chemicals. The black oxide coating provides some protection, but prolonged exposure to humidity may cause rust.
Do you provide samples before bulk order?
Yes, we can provide samples (usually 10-20 pieces) for your evaluation. Sample cost and shipping are negotiable, and the cost may be deducted from your first order.
What is the typical lead time?
For standard sizes and quantities, lead time is about 15-25 days after order confirmation. For special sizes or large orders, please consult our sales team.
Can you supply with other finishes like zinc plating or phosphate?
Yes, we offer various surface treatments including zinc plating, phosphate, dacromet, and hot-dip galvanizing. Please specify your requirement when inquiring.