Marine Bolts Manufacturer | Custom Stainless & Alloy Bolts for Offshore Use

FastenMetal Ltd specializes in the production of marine bolts, widely used in shipbuilding, offshore structures, port facilities, and marine wind power foundations where corrosion resistance is critical. We offer a full range of sizes from M6 to M48, with lengths from 30mm to 3000mm, and support custom non-standard designs based on customer drawings, including special threads and anti-loosening features.

Our marine bolts are available in 316L stainless steel, duplex steel, copper alloys, and Inconel high-nickel alloys, with optional finishes like hot-dip galvanizing, Dacromet coating, and PTFE for superior corrosion protection. We ensure dimensional accuracy within ±0.1mm and reliable long term performance.

FastenMetal is committed to delivering cost-effective, high performance fastening solutions with flexible lead times, rapid prototyping, and global service—trusted by marine and industrial clients worldwide.

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.