Marine Fasteners & Deck Hardware —
From Turkey

Turkey's precision fastener sector exports to over 60 countries with DIN, ISO and ASTM compliance. Seaway maintains the largest marine fastener inventory in Turkey — stainless steel A2/A4 grades, hot-dip galvanised and high-tensile alloy fasteners for all vessel types, at 30–40% below European import prices.TIER 1 CATEGORY

60+ Countries Receiving Turkish Fastener Exports
A2 / A4 Stainless Grades in Full Range
30–40% Savings vs European Suppliers
M2–M100 Size Range in Stock
📞 +90 216 446 55 00
📞 +90 532 657 48 78
info@seawayshipservices.com
🕓 7 Days · WhatsApp & Email 24/7 · 365 Days
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🔧 Turkey's Largest Marine Fastener Stockist & Exporter

Seaway Ship Services maintains the largest marine fastener inventory in Turkey — stocking the full range of DIN, ISO and ASTM-compliant fasteners for every shipbuilding, ship repair, dry-dock and offshore application. Turkey's precision machining and forging industries export fasteners to 60+ countries, with full tooling for EU and UK specification orders already in production.

From stainless steel A4 (AISI 316) deck screws and A2 hex bolts to ASTM A193 B7 alloy stud bolts for high-pressure flange joints, Grade 6 shackles, hot-dip galvanised anchor bolts and complete ground tackle packages — Seaway holds comprehensive stock across sizes M2 to M100. Mixed pallet orders are accepted, making Turkish supply equally practical for maintenance and refit projects as it is for newbuild bulk procurement.

In-house zinc plating, hot-dip galvanising and passivation lines ensure complete finish control. Every shipment can be accompanied by material test certificates, EN ISO 1461 galvanising certificates, mechanical property test reports and ASME B16.5 flange bolt documentation as required.

📦 What We Supply

A complete marine fastener and deck hardware range, stocked in Istanbul and available for immediate export. Mixed pallets accepted across all product categories.

🧱 Stainless Steel Fasteners

  • AISI 316 (A4) and AISI 304 (A2) hex bolts
  • Socket head cap screws and machine screws
  • DIN 931 / DIN 933 / DIN 912 compliant
  • M2–M64 full range in stock
  • Full thread and part thread options
  • Bright passivated finish as standard
  • A4-80 and A2-70 property class marking

🏠 Hot-Dip Galvanised (HDG)

  • Structural bolts, anchor bolts, foundation bolts
  • ISO 4016 and ISO 4018 compliant
  • EN ISO 1461 galvanising throughout
  • M10–M100 range for heavy structural applications
  • Minimum 45 µm zinc coating thickness
  • Deck fittings, keel bolts and hull fittings
  • HDG certificates available for every batch

🔧 Marine Studs & Threaded Rod

  • B7 and B16 alloy stud bolts for flange joints
  • ASTM A193 / A194 compliant
  • Full stud, tap-end and double-end types
  • Flanged valve and pressure vessel applications
  • ASME B16.5 class-rated bolt sets
  • Plain and zinc-coated finishes
  • Full material certificates supplied

🔨 Deck Screws & Self-Tappers

  • Stainless A4 tapping screws and wood screws
  • Hex washer-head and pan-head types
  • DIN 7504 and DIN 7981 compliant
  • For teak decking, GRP and aluminium superstructure
  • EPDM bonded washer options available
  • Full thread and self-drilling point options
  • Box and bulk bag packaging for yard use

⛓ Shackles & Rigging Hardware

  • Bow and dee shackles in screw pin and bolt type
  • Grade 4 and Grade 6 load ratings
  • WLL-marked to EN 13889
  • Hot-dip galvanised and stainless options
  • SWL from 300 kg to 150 tons
  • Swivel hooks, eye bolts and pad eyes
  • Test certificates and proof load documentation

🔍 Turnbuckles & Tensioners

  • Open body and closed body types
  • Jaw-jaw and jaw-eye end fittings
  • Grade 316 stainless steel throughout
  • Right-hand and left-hand thread options
  • Rigging and tensioning applications
  • Locking wire provision on all models
  • BS EN 1677 and DIN 1480 compliant

⚓ Anchors & Ground Tackle

  • Delta, CQR, Danforth and Spade-style anchors
  • Hot-dip galvanised and stainless options
  • 5 kg to 1,500 kg vessel anchor range
  • Anchor chain and swivel accessories
  • ISO 4566 and ISO 1704 compliant
  • Grade 3 stud and studless link chain
  • 6 mm to 120 mm chain diameter in stock

🔧 Nuts, Washers & Locknuts

  • Hex nuts, nyloc, flange nuts, castle nuts
  • Flat washers, spring washers, Nord-Lock types
  • DIN 934 and DIN 125 compliant
  • Full stainless A2 and A4 range
  • Hot-dip galvanised range for structural use
  • Serrated flange nuts for vibration applications
  • Full metric and UNC/UNF thread forms

📋 Technical Specifications

Key product types from current stock. Material test certificates, EN ISO 1461 HDG certificates, mechanical property test reports and proof load documentation accompany every shipment as required.

Product Material Standard Size Range Finish
Hex Bolt AISI 316 (A4) DIN 933 M4–M64 Bright / Passivated
Stud Bolt ASTM A193 B7 ASME B16.5 M16–M72 Plain / Zinc
Shackle Grade 6 alloy EN 13889 WLL 0.3–150t HDG / Stainless
Anchor Carbon steel ISO 4566 5–1,500 kg HDG
Anchor Chain Grade 3 ISO 1704 6–120 mm dia HDG / Stainless

Approvals & Standards Compliance

DIN ISO ASTM ASME B16.5 EN ISO 1461 EN 13889 ISO 4566 ISO 1704 A4-80 A2-70 Grade 8.8 / 10.9

Why Source Marine Fasteners from Turkey?

Six structural advantages that make Turkey the optimal supply source for marine fasteners and deck hardware.

🏭
Export

Precision Forging at Scale

Established precision machining and forging industries with export scale and decades of experience supplying 60+ countries. Production quality and consistency proven across international marine procurement requirements.

💸
30–40%

No Re-Engineering Required

Full DIN/ISO/ASTM production tooling already in place — no specification translation or re-engineering required for EU and UK spec orders. Standard marine fastener grades supplied direct from existing tooling.

In-House

Full Finishing Lines

In-house zinc plating, hot-dip galvanising and passivation lines ensure complete finish control and certification. EN ISO 1461 HDG certificates issued direct from Turkish finishing lines.

📦
Stock

Warehouse Holdings

Comprehensive stock holdings across all categories and sizes — most standard sizes available from Istanbul warehouse, not made-to-order. Mixed pallet dispatch for maintenance, refit and project orders.

🔨
Mixed

Pallet Flexibility

Mixed pallet orders accepted across all fastener categories — full flexibility for maintenance and refit projects where multiple grades and sizes are required on a single shipment.

🏛
0% Duty

UK & EU Tariff-Free

UK and EU duty-free access under trade agreements for most fastener categories. No tariff exposure compared to Asian fastener imports, making Turkish supply the compliant, cost-effective alternative.

🌎 Target Buyers

Seaway's marine fastener export programme is structured around the procurement needs of shipyards, ship repairers, offshore supply companies, hardware distributors and marine maintenance contractors across the UK and EU.

🇪🇺 Primary Buyer Categories

  • Shipyards and ship repairers requiring bulk stainless and HDG fastener supply
  • Dry docks sourcing high-tensile stud bolt sets for flange and valve work
  • Marine hardware wholesalers seeking a cost-competitive Turkish supply chain
  • Offshore supply companies sourcing shackles, rigging hardware and deck fittings
  • Deck equipment OEMs requiring A4 stainless fasteners to DIN/ISO specification
  • Marine maintenance contractors needing mixed pallet stock for refit projects

🇬🇧 UK & EU Market Applications

  • UK naval shipbuilding programmes requiring ASTM A193 B7 stud bolt sets in volume
  • Offshore wind vessel construction — deck hardware, foundation bolts and rigging fittings
  • Boatbuilders and superyacht yards sourcing A4-316 deck screws and stainless hardware
  • Baltic and Mediterranean dry docks with continuous demand for stainless and HDG fasteners
  • EU ship repair yards requiring mixed pallet orders for maintenance and refit seasons
  • Marine hardware distributors expanding Turkish supply for competitive wholesale pricing

🚢 Logistics & Delivery

Regular container and groupage services from Istanbul, Izmit and Izmir to all major UK and EU ports. Mixed pallets accepted. Full export documentation included as standard.

Detail Information
Minimum Order Quantity 1 box / mixed pallet accepted
Packaging Polybag + inner carton + outer master carton; pallet or drum for bulk
Lead Time (from stock) 1–2 weeks
Lead Time (custom) 2–4 weeks
Export Ports Istanbul, Izmit, Izmir
Incoterms EXW, FOB, CFR, CIF
Transit to UK 5–7 days
Transit to ARA Range 3–5 days (Antwerp / Rotterdam / Amsterdam)

Request Marine Fasteners Quote

Send us your fastener schedule, sizes and quantities — we will respond with a full CIF price within 24 hours, including material test certificates and export documentation. Mixed pallet orders welcome, no minimum.

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