Precision IndustrialFasteners forCritical Applications
Melta Alloys is a manufacturer, supplier and exporter of bolts, nuts, screws, washers, studs and special fasteners in stainless steel, alloy steel, duplex, nickel alloys, titanium and more.
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Fasteners engineered for demanding industries
Melta Alloys is a manufacturer, supplier and exporter of industrial fasteners for B2B customers in engineering, construction, oil and gas, petrochemical, power, marine, infrastructure and fabrication.
Six categories. Thirty-seven product types.
Hex, flange, structural and anchor bolts, nuts, screws, washers, stud bolts and drawing-based special fasteners.
Bolts
Hex, flange, structural, anchor and specialty bolts for bolted joints in steel structures…
Nuts
Hex, flange, square, T-slot, nylon-insert and all-metal lock nuts matched to bolt property…
Screws
Cap screws, socket head screws, self tapping, machine and countersunk screws for assemblies…
Washers
Spring, machined, square and dome washers for load distribution and locking.
Studs
Fully threaded and double-ended stud bolts for flanged, pressure and heavy engineering joints.
Special Fasteners
Drawing-based special bolts, rivets, plugs, pins and turned components.
Can't find your fastener?
Send a drawing, sample or specification for review and quotation.
Technical capability you can specify against
Precision manufacturing
Fasteners produced to drawing and standard tolerances.
International standards
ASTM, ASME, DIN, ISO, EN and BS dimensional and material references.
Material traceability
Heat or batch identification and Material Test Certificates on request.
Quality inspection
Dimensional, visual, thread and mechanical checks as agreed.
Custom fasteners
Made to your drawing, sample or specification.
Export packaging
Packed for sea and air shipment with corrosion protection where needed.
Nine fastener material families
From stainless and carbon steel to duplex, nickel alloys and titanium.
Stainless Steel
Chromium-bearing steels with at least 10.5% Cr that form a passive oxide film. Austenitic grades…
Carbon Steel
Low and medium carbon steels used for general engineering, structural and machinery fasteners…
Alloy Steel
Chromium-molybdenum and related alloy steels, quenched and tempered for high strength and for…
Duplex Steel
Ferritic-austenitic stainless steels with roughly equal phase balance, giving about twice the yield…
Super Duplex Steel
Highly alloyed duplex stainless steels (PREN above 40) for severe chloride and sour environments…
Nickel Alloys
Corrosion and heat resistant alloy families including Inconel, Incoloy, Monel and Hastelloy…
Brass
Copper-zinc alloys with good machinability, electrical conductivity and corrosion resistance in…
Titanium
High strength-to-weight ratio and outstanding resistance to seawater and oxidising chemicals; used…
High Tensile
Medium carbon and alloy steels quenched and tempered to property classes 8.8, 10.9 and 12.9 or…
A2 / A4 stainless fasteners
Chromium-bearing steels with at least 10.5% Cr that form a passive oxide film. Austenitic grades (304, 316) are the most widely specified fastener stainless steels; martensitic 410 is hardenable.
Finishes selected to suit the service
Plating, galvanizing, black oxide, passivation or a customer-specified treatment is selected to suit the material and the environment the fastener will see.
From raw material to dispatch
Typical process route for a fastener (general information; the actual route depends on size, material and order).
- Raw material selection and verification
- Cutting to blank length
- Heading or forging
- Thread rolling or cutting
- Heat treatment where the grade requires it
- Surface treatment
- Inspection and testing
- Marking and packing
Industries we supply
Fasteners in focus
Inspection and documentation agreed with each order
Inspection, testing and documentation are agreed with each order, from dimensional and thread checks to Material Test Certificates.
Our quality approachTechnical resources, available on request
Contact us for the latest documents.
Looking for a specific fastener?
Send us your drawing, specification or requirement and our team will respond by email.