Factory Delivery Durable & Affordable 6mm Spring Nuts

FastenMetal LTD specializes in manufacturing 6mm spring nuts, strictly following international standards such as ISO 4032 and GB/T 6170, offering high-quality fastening solutions at highly competitive prices.

Our spring nuts are produced using a range of premium materials including carbon steel (Grades 4.8/8.8/10.9), stainless steel (304/316), and alloy steel (35CrMoA, 42CrMo), providing excellent elastic recovery and anti-loosening performance. They are especially suitable for high-vibration environments such as machinery, automotive manufacturing, and electronic equipment.

Using advanced cold heading and heat treatment processes, our spring nuts achieve 6g/6H thread accuracy. Custom non-standard sizes (M1.6–M24mm) and special surface treatments (zinc plating, Dacromet, nickel plating, etc.) are available upon request. The unique elastic structure of the spring nut effectively compensates for thread gaps, maintaining stable performance in environments ranging from -30℃ to 200℃.

We provide 72-hour salt spray test reports and material certificates (RoHS compliant). With a commitment to fast delivery (3–7 days for standard orders) and competitive pricing for bulk purchases, all products undergo full-size inspection and torque testing—making them a cost-effective anti-loosening fastening solution for industries such as rail transit and new energy equipment.

Are You an OEM Manufacturer?

Yes

Fasteners & Stamping Parts Supplier

Fastenmetal is a experienced manufacturer produce fasteners and stamped metal parts. We specialize in OEM production based on customer drawings, offering both standard and custom made solutions.

Our fastener range includes car bolts, marine bolts, chemical bolts, stud bolts, threaded rods, and other high strength bolts.

1.Exotic Material Bolts

For bolts used in extreme environments such as marine, chemical, oil & gas, and aerospace industries,normally need higher corrosion resistance. FastenMetal supply custom bolts and metal components made from exotic materials such as Inconel, Monel, Titanium, and various types of duplex stainless steel.

2.High Strength Bolts

When regular bolts don’t meet strength requirements, we can produce bolts with strength grades up to Grade 12.9 for your requirements.

3.Custom Shapes and Sizes

We manufacture fasteners in special shapes, lengths, and diameters according to specific applications—fully customized according to your drawings.

In addition to fasteners, we offer custom stamping and metal fabrication services. We have 12 punching machines and press machines for large sheet metal forming and bending, we can handle part thicknesses up to 6mm.

In many of these cases, the customer’s engineering department will provide us CAD drawings and tell us the materials,strength grade they need. We produce samples for customers approval before bulk production.