Spring Lock Washer DIN127A Carbon Steel Zinc Plated

Spring Lock Washer DIN127A Carbon Steel Zinc Plated** is widely used to resist loosening for bolted connections under continuous vibration. Ningbo Gangtong Zheli Fasteners Co., Ltd produces this lock washer with strict raw material screening. Available base materials include SAE1008 carbon steel, SAE1010 carbon steel, SS304 stainless steel and SS316 stainless steel. The production follows DIN 127, ISO, ASTM industrial specifications, and raw material MTC documents from steel mills are available for bulk orders.

Technical Parameters

Surface Treatment Comparison

Different surface treatments bring different anti-corrosion performance for lock washers.

1. Blue-white galvanizing: Cost-effective, suitable for dry indoor environments and offers basic rust protection.

2. Black oxide finish: Economical treatment, mainly for appearance and slight oxidation resistance. Normally used with lubricants and not recommended for humid outdoor conditions.

3. SS304/SS316 stainless steel: No electroplating required, excellent corrosion resistance, ideal for humid and marine working conditions.

Production & Quality Control

We conduct strict incoming inspection for all raw materials. Lock washer blanks are manufactured through stamping, forming, heat treatment and surface treatment. Hardness and elastic property sampling inspection will be completed before packaging. Precise heat treatment maintains stable elasticity of lock washers, ensuring durable anti-loosening performance for bolted connections.

Certification Support

All products comply with DIN, ISO and ASTM international standards. Our company holds ISO9001:2015 quality management system certification covering the manufacturing of various fasteners.

We implement full-process quality control from raw material incoming inspection, stamping, heat treatment, surface treatment to finished product delivery. Each batch of goods can provide inspection reports, material certificates and test records upon request.

Buyers can verify product quality through official standard parameters and relevant certification files. We support third-party laboratory testing to meet strict engineering and procurement requirements for machinery, construction and marine equipment.

Packing & Shipping

Standard packing varies for different kinds of fasteners. Nuts, bolts and washers are packed in export cartons, while stud rods are bundled first and then placed on pallets. Palletized shipment is available for bulk orders. Products are properly secured inside packages to avoid scratches and deformation during long-distance ocean transportation.

Why Choose Ningbo Gangtong Zheli Fasteners Co., Ltd

We focus on standard fastener manufacturing for years. Stable raw material supply and complete quality inspection system guarantee consistent product quality. Flexible stock support helps global importers arrange small trial orders and mass orders.

FAQ

1. Can you provide material related documents for the lock washers?

Yes, raw material MTC documents from steel mills are available upon formal order request.

2. What sizes of **Spring Lock Washer DIN127A Carbon Steel Zinc Plated** can you supply?

We cover complete sizes from M2 to M48, custom sizes can be negotiated.

3. Is stainless steel lock washer interchangeable with carbon steel version?

Stainless steel and carbon steel differ in hardness and corrosion resistance, select materials according to actual working environment.

4. What is the difference between DIN127A and DIN127B spring lock washer?

DIN127A is regular type; DIN127B has wider width, please confirm drawing before purchasing.

Application Scenarios

Machinery equipment, construction engineering, automotive assembly, agricultural machinery and power facilities are main application fields. Proper installation of **Spring Lock Washer DIN127A Carbon Steel Zinc Plated** effectively avoids bolt loosening caused by mechanical vibration.