Stainless, galvanized and high-tensile bolts, nuts, screws and washers, plus shackles, hinges, latches, hatch fittings and deck hardware delivered to vessels at U.S. ports.
Almost every repair on board needs a fastener, and the wrong grade or material in salt air can fail within months. Alpha Ship Supplies is a marine hardware supplier and marine fasteners supplier for commercial vessels, workboats and yachts calling at ports across the United States. Our Houston team quotes bolts, nuts, screws, shackles and fittings by size, thread, grade and material, packs them by type so the crew can find them quickly, and delivers them with the rest of your stores to the vessel at its berth.
Houston HQ | Fasteners · Deck Hardware · Hinges · Latches | Matched by Size, Grade and Material
Stainless, galvanized, high-tensile
Shackles, eyes, cleats, fittings
Matched to the threads on board
Hardware with all your other stores
Fasteners look simple until one fails. A carbon steel bolt in a sea water fitting rusts quickly, a low-grade bolt on a machinery foundation can shear under vibration, and mixing stainless with aluminum without isolation causes galvanic corrosion. Getting the size, thread, grade and material right the first time keeps repairs from coming back.
Bosuns, engineers and superintendents send hardware requisitions to Alpha Ship Supplies because:
For fleets with sister ships, we can keep a record of the fastener sizes and hardware fitted on board, so repeat orders for hatch dogs, hinges and common bolts are quoted faster at every U.S. call.
Send sizes, grades and quantities, with a photo if unsure. We confirm what can reach you before sailing.
We supply general and specialist hardware for deck, engine room and accommodation use:
Assortment kits in common sizes are available for workshop restocking.
Special fasteners such as titanium, silicon bronze or monel can be quoted on request for yachts and specialist applications, with lead times shown on the quotation.
Bulk carriers and general cargo ships use large quantities of hatch cover fittings, cleats and galvanized fasteners that suffer from cargo dust and sea spray. Container ships need lashing hardware, hinges and door fittings for reefers and stores. Tankers require stainless fasteners and fittings for deck piping and walkways. Offshore support vessels and tugs go through high-tensile bolts, shackles and deck hardware in heavy daily use. Yachts expect polished 316 stainless fittings that look as good as they perform. We read every hardware requisition with the vessel and location in mind so the right material and finish are quoted.
Fishing vessels and workboats operating from Gulf Coast ports also order galvanized fasteners and deck hardware on the same terms as deep-sea ships.
Hardware requisitions are usually long lists of small items. We quote every line and pack them so the crew can restock quickly.
304 and 316 stainless bolts, nuts, washers and screws for deck, sea water and accommodation use where corrosion resistance matters.
Hot-dip galvanized fasteners for deck structures and high-tensile grade 8.8 and 10.9 bolts for machinery and load-bearing joints.
Shackles, eye bolts, turnbuckles, thimbles and wire rope clips. See deck and engine stores.
Hinges, latches, dogs, hasps, handles and gaskets for hatches, weathertight doors, lockers and cabins.
Cleats, deck eyes, padeyes, hand rail fittings and stanchion bases in galvanized and stainless finishes.
Boxed assortments of bolts, nuts, washers, screws, cotter pins and circlips for restocking the engine room workshop. See technical supply.
Hardware lists are long and detailed, so accuracy and packing make the difference.
Every line is quoted with diameter, length, thread pitch, head type, grade and material. If a line is unclear, we ask before quoting rather than guess.
Many foreign-built ships use metric threads, while U.S. stock is often imperial. We confirm the standard and quote metric fasteners where they are needed, showing any lead time.
Where fasteners join dissimilar metals, such as stainless on aluminum, we can suggest isolating washers or sleeves to protect the joint.
Fasteners are bagged and labeled by size and type, then packed in cartons by category, so the crew can restock bins without sorting.
For lifting hardware such as shackles and eye bolts, tell us if you need load ratings or test certificates for the vessel’s lifting gear register. We confirm availability before you approve the order, and the documents travel with the delivery.
Hardware is delivered with your other stores at the berth, and the delivery note lists every size, grade and quantity so the store keeper can update the inventory straight away.
Send it as a spreadsheet with sizes and quantities. We quote every line and mark anything that needs clarification.
A broken hatch dog, a missing shackle or a sheared bolt can stop a job or fail an inspection. Mark the requisition URGENT, include sizes, grades, ETD and port, and we will tell you quickly what can realistically be sourced and delivered before departure. Requisitions can be sent through our form at any time, and urgent requests are prioritized by ETD.
Temporary fixings such as clamps, cable ties and repair brackets can also be supplied so a job can be secured until permanent parts arrive.
Ships built in Europe, Japan, South Korea and China use metric fasteners almost everywhere, and their technical departments are often in Greece, Germany, Norway or Singapore. We work by email across time zones and quote metric sizes and grades as specified, so the crew receives parts that fit the existing threads.
Where a metric size or special grade is not readily available in the United States, we show the lead time clearly and can arrange supply at the vessel’s next U.S. port on the rotation.
Some vessels carry equipment from many countries, so one engine room may use both metric and imperial threads. Tell us which equipment each fastener is for and we will quote the correct standard line by line, avoiding mismatched parts on delivery.
Small details make the biggest difference on a hardware requisition.
Give diameter, length and thread pitch for every bolt and screw. For nuts, give the thread size. A photo next to a ruler helps when the thread is uncertain.
Say whether you need 316 stainless, 304 stainless, hot-dip galvanized or high-tensile steel. If unsure, tell us where the fastener will be used.
Add matching nuts, washers and lock washers to each bolt line so the joint is complete.
For long lists, a spreadsheet with one size per line speeds up quoting and reduces errors.
If some items are needed for a repair before sailing and others are for restocking, mark them separately so the urgent lines are confirmed first.
Vessel name, IMO, berth or terminal, ETA/ETD, agent details and the item list with quantities. For spares add maker, model and part number.
Every line priced, substitutes and long-lead items flagged, and delivery or launch charges confirmed up front.
Approve by email or purchase order. Suppliers and transport are booked the same day.
Stores arrive in the agreed slot at your berth at any U.S. port we serve with a delivery note matching your requisition.
Invoice and supporting documents for your accounts, audits and vessel records.
A clear size and grade for every line at step one is the biggest factor in quotation speed. Every hardware delivery is checked against the requisition before dispatch, and any substitution is shown on the delivery note before the officer signs.
Send the sizes, grades, materials and quantities to Alpha Ship Supplies. We quote the hardware and deliver it to the vessel at its berth at U.S. ports we serve.
Yes. We supply metric bolts, nuts and screws for foreign-built vessels and show any lead time for less common sizes or grades.
316 stainless is generally preferred for sea water and exposed deck use because of its higher corrosion resistance; 304 is common for interior and less exposed areas.
Yes. We supply high-tensile grade 8.8 and 10.9 bolts and matching nuts for machinery and load-bearing joints.
Shackles, eye bolts, turnbuckles, thimbles, cleats, padeyes, deck eyes and hand rail fittings in galvanized and stainless finishes.
Yes. Hinges, latches, dogs, handles and gaskets for hatches, weathertight doors, lockers and cabins.
Fasteners are bagged and labeled by size and type, then packed in cartons by category so the crew can restock bins quickly.
Yes. Hardware and fasteners are delivered with your provisions, deck and engine stores on one delivery to the vessel.
Yes. Boxed assortments of common bolts, nuts, washers, screws and pins are available for restocking the engine room workshop.
Use fasteners compatible with the metals being joined, and use isolating washers or sleeves where dissimilar metals meet. We can suggest options on the quotation.
Send the sizes, grades, materials, vessel name and port. You will get a line-by-line quotation and a delivery plan to your berth.