When your project demands components that resist corrosion and securely fasten parts, stainless steel pins are often the go-to solution. These small yet critical pieces are manufactured to precise specifications for a vast array of applications across different sectors. Identifying dependable sources for these pins ensures you receive the exact quality and durability needed for reliable performance.
Stainless steel pins are essentially sturdy metal rods or cylinders used to connect, align, or hold components together within machinery or structures. Their main advantage comes from the steel alloy itself, which includes chromium to naturally resist rust and corrosion, even in tough conditions. You’ll encounter different kinds, like smooth dowel pins for precise location or flexible spring pins, each designed for specific joining or fastening jobs.
Top 10 stainless steel pins manufacturers list
Name | Founding Year |
Stanlok | 1938 |
PIC Design, Inc. | 1954 |
Miniature Precision Components | 1999 |
Bayou City Bolt | 1962 |
K.L. Jack | 1979 |
Jianglin Steel | 2003 |
Carr Lane Manufacturing Co. | 1952 |
BENE INOX | 1977 |
National Bolt & Nut Corp. | 1996 |
Jergens, Inc. | 1942 |
Stanlok
Year Founded: 1938
Main Products
- Taper pins (plain and threaded) in steel and stainless steel
- Straight pins in various materials and specifications
- Special nuts and custom fasteners
- Precision machined parts
- Aircraft taper pins to AN386 standard
- Military Standard (MS) plain taper pins
- Metric unthreaded and threaded taper pins
Company Description
Stanlok Corporation, based in Worcester, Massachusetts, has a long history in making fasteners here in America; it actually started out as Standard Lock Washer & Manufacturing Co. Inc. It kind of grew from older companies, you know, like Worcester Taper Pin and N.E. Specialty Nut. They’ve been doing this for over 80 years now, mostly known for special fasteners, especially those stainless steel pins.
Stanlok’s factory is at 1451 Grafton Street in Worcester, that’s where the parts get made. Inside, it’s a mix – some old ways of making things, some new tech too. The company uses special machines and its own methods figured out over time, plus it’s all about making things in America with American materials.
Stainless steel pins? Yeah, Stanlok makes a lot of those. They make different kinds, but taper pins are a big focus, the stainless steel ones. These pins have to meet certain rules, like ASME B18.8.2 for inch sizes and ISO 2339 for metric sizes, so they’re made right. Common sizes, like the little 7/0 up through size 10, are usually easy to get because Stanlok stocks them.
The stainless steel used is usually 18-8 type, which is a lot like 303 or 304 steel; it doesn’t rust easily, which is good. That means the pins last longer in tough spots. Stanlok also gives the pins a special treatment called passivation, following ASTM A380 rules, just to make them even better at fighting rust.
Stanlok is pretty good because they don’t just make standard pins; they can make custom ones, too, exactly how someone needs them. The engineers there developed special tools and methods just for making parts like pins, which are long and round. This skill means Stanlok can take on orders for pins that aren’t standard size or have different designs.
PIC Design, Inc.
Year Founded: 1954
Main Products
- Precision stainless steel dowel pins
- Custom dowel pins
- Precision gears
- Shoulder screws
- Set screws
- Couplings & U-Joints
- Bearings & Bushings
- Shafting
Company Description
PIC Design, Inc., which you’ll find in Connecticut’s Naugatuck Valley, got its start back in 1954 under the name Precision Industrial Components, LLC. That area was known for manufacturing. PIC Design was actually the first company in the U.S. offering pre-engineered gear parts, a real pioneer for those “catalog” outfits selling mechanical components.
They really specialize in making top-notch stainless steel dowel pins. These pins are machined very precisely, down to tight tolerances. Their main job? Helping locate parts accurately inside machinery in all sorts of industries.
PIC Design focuses hard on getting the details right when making these pins. And they pay just as much attention to the holes the pins need to fit into. That fit is key.
You can get these stainless steel dowel pins in inch sizes or metric sizes. Standard diameters run from 1/3″ to 1/2″ (or 1 mm to 12 mm). Lengths go from 3/32″ up to 1-1/2″ (that’s 3 mm to 50 mm).
If the standard options don’t quite fit what a project needs, PIC Design also does custom work. They can make pins exactly to whatever specifications are required.
Two main types of stainless steel are used for these dowel pins. There’s 303 stainless steel, good for general use. Then there’s 416 stainless steel, which is hardened to make it more durable when things need to be tougher. Choosing depends on whether corrosion resistance or hardness is more important for the application.
Miniature Precision Components
Year Founded: 1999
Main Products
- Stainless steel dowel pins (303 and 416 stainless steel)
- Precision shoulder screws
- Miniature gears and pinions
- Linear motion components
- Precision bearings
- Couplings
- Timing pulleys and belts
Company Description
Miniature Precision Components Inc., sometimes called MPC, operates from Santa Clara, California; the company started there in 1999. They are involved in making and distributing very small, high-precision mechanical parts. There’s a strong focus on stainless steel pins and other miniature components for technical fields. MPC supplies manufacturers all over the U.S.
One thing MPC really makes a lot of is stainless steel pins, particularly dowel pins – these are sort of a signature item for them. These pins have to be made just right, meeting incredibly tight size standards. You can get these dowel pins in inch sizes or metric, and they mainly use 303 and 416 stainless steel. Options include slip fit and press fit pins, covering different ways parts need to be put together.
The company puts a lot of effort into the quality and exactness of the stainless steel pins. Advanced manufacturing techniques are used to make sure the dimensions are accurate and the surface finish is always consistent. Because they pay attention to these things, their dowel pins are known to be dependable, especially when parts must align exactly right.
MPC’s catalog has quite a few styles and sizes of stainless steel pins. This variety helps meet different engineering needs. If someone needs something specific, MPC offers custom work. They can adjust their standard stainless pins or even create totally new designs from scratch, which is helpful for industries needing specialized parts.
Besides making their own items, MPC is an authorized seller for other known makers like WM Berg and PIC-Design. This connection lets MPC offer a pretty full range of precision components. Stocking items from these partners allows them to provide high-quality stainless pins alongside other related precision parts.
The type of stainless steel used for the pins matters. The 303 stainless steel pins resist corrosion quite well, making them good for general use. On the other hand, 416 stainless steel pins are hardened (to 36-42 Rc) for better durability and wear resistance. Having both materials means engineers can pick the best pin for the job environment.
Bayou City Bolt
Year Founded: 1962
Main Products
- Stainless steel pins (cotter pins, dowel pins, taper pins, clevis pins)
- Bolts and nuts (hex head, square head, socket cap screws)
- Washers and studs
- Threaded rods and fasteners
- Turnbuckles and anchors
- U-bolts and eye bolts
Company Description
Bayou City Bolt & Supply Co., Inc., located in Houston, Texas, was started by Louis Palombi back in 1962. It wasn’t always so big; it kicked off in just a 2,000-square-foot space. Over time, it expanded quite a bit, now needing nine warehouses totaling 40,000 square feet just to hold all the inventory.
The company became known as a major fastener source around the Gulf Coast. How? By focusing on getting customers the fasteners they required, right when they required them. It’s a simple idea, but it worked.
Houston is a great spot for this business. Being there puts Bayou City Bolt close to all the action – the big industries on the Gulf Coast. This means they can ship products fast to places involved in energy, construction, manufacturing, and even government work. Fast delivery is really part of what they offer.
This place really zeros in on industrial fasteners. They’ve built up a huge stock, especially when it comes to stainless steel pins, which helps them stand apart. You’ll find many different kinds of stainless steel pins for all sorts of industrial tasks. They make sure these pins are quality, designed to hold up in tough spots.
Stainless steel pins come in a few flavors, but 304 and 316 grades are what you’ll mostly find ready to go. The 304 type has less carbon and more chromium, good for fighting off rust in normal situations. If things get rougher, like around saltwater or chemicals, the 316 grade stainless steel pins give you extra protection against corrosion.
Let’s talk about their stainless steel dowel pins; these are kind of a signature item. They’re basically very precisely made metal cylinders. The manufacturing is super accurate, so they fit just right into specific holes. Some pins are a tiny bit smaller than the hole for an easy slide-in fit; others are made slightly bigger so they have to be pressed in tightly. These pins are super important for lining up machine parts perfectly.
Bayou City Bolt also has stainless steel taper pins. These are different because they have a slight slope – one end is a little bigger than the other, usually tapering 1/4 inch per foot. You can get them in regular steel or the 18-8 stainless steel that resists rust better. These taper pins are great for alignment jobs, especially when you need something that won’t corrode easily.
K.L. Jack
Year Founded: 1979
Main Products
- Stainless Steel Dowel Pins
- Stainless Steel Spring Pins
- Cotter Pins
- Pull Dowel Pins
- Lynch Pins
- Clevis Pins
- Key Stock
- Hairpin Cotter Pins
- Drift Pins
Company Description
K.L. Jack, headquartered in Portland, Maine, was founded in 1979 as a veteran and family-owned business. Right from the start, the company aimed to sell good industrial fasteners in Maine. They quickly got known for quality hardware and not cutting corners.
Stainless steel pins are a big part of what K.L. Jack offers. People know these pins are strong, and they resist rust very well. That makes them suitable for tough conditions, you see? Conditions where normal steel pins might wear out or corrode quickly.
Making the pins involves careful work to get the sizes just right. They follow exact specifications. This ensures that the quality stays consistent, pin after pin. You know what you’re getting.
The company sells a lot of stainless steel dowel pins. These pins are made from a specific unhardened material, the 18-8 grade stainless steel. It’s a pretty standard type for good reason.
These dowel pins are ground very precisely, just a tiny bit over their listed size—like 0.0002 inches over, plus or minus almost nothing. This super-exact sizing helps create a really tight connection when the pin goes into a hole. It’s called an interference fit, and it works because the pin compresses just slightly, creating friction that holds it firmly in place.
You can get different kinds of stainless steel pins for different jobs. Their dowel pins have slightly sloped ends, which makes putting them into holes easier. They often act as pivots, hinges, or shafts, or are used in jigs to hold parts right where they need to be. The 18-8 stainless steel balances strength and rust resistance, though sometimes it can be a little magnetic.
K.L. Jack also makes spring pins from stainless steel. These are good when you need something reliable that also has some give or flexibility. For jobs needing extra hardness and wear resistance, they offer spring pins made from Type 420 stainless steel, which still resists corrosion pretty well.
Jianglin Steel
Year Founded: 2003
Main Products
- Stainless steel pins
- Stainless steel fasteners
- Precision metal parts
- Stainless steel coils and sheets
- Stainless steel strips
- Stainless steel tubes and pipes
- Stainless steel bars and wires
Company Description
Jianglin Steel Corporation, officially called Tianjin Jianglin Technology Development Co., Ltd., is located in Tianjin, China, and got its start back in June 2003. The company’s chairman, Wang Junjiang, kicked things off with an initial investment of 500 million RMB. The main offices are in Yuanjiabao Village, right in Chagugang within Tianjin’s Wuqing District—it’s only about a 40-minute drive to Tianjin Port, which is handy for getting products shipped out.
The main factory space is quite large, covering 21,000 square meters, and it can churn out about 700,000 tons of material every year. Jianglin didn’t just stay in Tianjin; it set up other places to make things too. One of these is a hardware factory down in Dongguan that started in 2002, focusing just on making precise metal bits, including stainless steel pins.
Making stainless steel pins is a key activity for Jianglin’s metal hardware side of things. Pins get made using some pretty advanced equipment, like precise automatic lathes brought over from Taiwan, automatic milling machines, and special machines just for making threads. The whole process for making stainless steel pins has several important steps, from picking the right metal at the beginning to checking the final quality.
Good quality stainless steel is the starting point for the pins, mostly grades 304 and 316, because they don’t rust easily and last a long time. Jianglin makes its stainless steel pins to very exact sizes, keeping a close eye on quality so the dimensions and the finish on the surface are always consistent. The pins also go through different processes like heat treatment, which makes them harder and even better at resisting rust.
Jianglin offers different kinds of stainless steel pins because industries need them for different jobs. You can find dowel pins, which help line things up perfectly in assemblies, and clevis pins for creating hinged joints. There are also specialized fastening pins made for the automotive world, electronics, and various machinery applications, showing the company can adapt.
Carr Lane Manufacturing Co.
Year Founded: 1952
Main Products
- Stainless Steel Pins
- Ball Lock Pins
- Lifting Pins
- Alignment Pins
- Toggle Clamps
- Drill Bushings
- Hoist Rings
- Chuck Jaws
- Power Workholding
- Modular Fixturing
Company Description
Carr Lane Manufacturing Co. is located in St. Louis, Missouri, and it got started way back in 1952 by Earl Walker and Myrtle Walker. Earl had a job welding at McDonnell Aircraft Company; that place later became McDonnell Douglas. He noticed something interesting: production lines would stop just because they needed a couple of special pins made right then, not very efficient.
Because Earl saw the need for standardized parts, he and Myrtle just started making them. They worked nights and weekends out of a little wooden garage. Myrtle Walker, who had wanted to be an artist, helped a lot in the beginning; she drew all the product pictures for the first catalog herself. She also started Carr Lane’s fast shipping policy—get 95% of the orders out the same day if they came in by 3 p.m., which really helped people trust the company.
The company’s main base is still there in St. Louis, Missouri. Now, though, Carr Lane has more manufacturing spots and warehouses around the U.S. It has grown a lot from that garage start. Today, Carr Lane is a world leader for tooling components, offering something like 100,000 different items to industries all over the place.
Stainless steel pins are definitely a key product for Carr Lane Manufacturing. The company makes several kinds for different needs. You have their stainless steel lifting pins, built for heavy work in factories where things need to resist corrosion and be super strong. Carr Lane makes these from good 300-series stainless steel, which helps them hold up in tough environments.
Then there are the stainless steel ball lock pins. These pins have a very precisely ground shank part. They lock positively, meaning they stay put until someone pushes the button. Pushing that button moves a spindle inside, letting locking balls retract into a groove. This design makes sure parts are fastened securely, really important when things absolutely must stay together.
BENE INOX
Year Founded: 1977
Main Products
- Stainless steel pins
- Stainless steel fasteners and fixing elements
- Stainless steel fittings and connectors
- Pipes and piping accessories
- Valves
- Measurement and instrumentation
- Pipe supports
- Stainless steel screws, bolts and nuts
Company Description
BENE INOX, headquartered in Saint-Priest, France, is a company focused on stainless steel components for industrial fluid processes. They started back in 1977, so that’s over 45 years of building a reputation. Essentially, they provide specific parts for industrial systems managing liquids and gases.
In 2001, things shifted when BENE INOX became part of the MAURIN Group. This partnership helped the company grow quite a bit, reaching more clients in France and other countries, too. Even with growth, the main focus stayed sharply on stainless steel expertise.
The company offers a massive range of products – think over 60,000 different stainless steel items. Stainless steel pins are something they really specialize in. And these pins meet various global standards like ISO, ANSI, and DIN, which ensures they’re suitable for many different industrial uses.
When it comes to their stainless steel pins, quality is key. BENE INOX manufactures them with careful attention. A big plus is their excellent resistance to corrosion, a known benefit of well-made stainless steel.
Different grades are available, like A1, A2, and A4 stainless steel. Each one offers specific levels of protection and strength for the job at hand, you see.
You’ll find these pins used in many different industries because they’re so adaptable. Food processing plants, for instance, use them because hygiene is critical there.
Chemical and pharmaceutical makers value the pins’ ability to handle aggressive substances. For marine uses, resisting salt water is important. Plus, general industrial assembly relies on its durability. They really are quite versatile components.
National Bolt & Nut Corp.
Year Founded: 1996
Main Products
- Bolts (hex, carriage, anchor, bent, flange, socket, 12 point)
- Nuts (hex, square, coupling, flange, lock, slotted)
- Washers (flat, lock, structural, beveled)
- Pins (dowel pins, straight pins)
- Studs
- Rods
- Rivets
- Screws and screw machine products
Company Description
National Bolt & Nut Corporation, located in Schaumburg, Illinois, is a key maker of custom fasteners. The business began its operations in 1996. Over time, it developed into a significant U.S. supplier recognized for quality fastener products.
Holding an ISO 9001:2015 certification is important. It shows the company follows strict quality rules in its manufacturing processes.
National Bolt & Nut makes large-diameter custom fasteners. These aren’t standard parts; they are built for critical uses in many different fields. Quality work and helping customers were founding principles.
The production facility houses up-to-date machinery. This includes modern presses, machines specifically for making bolt heads, and high-speed threading equipment. Experienced workers run these machines, focusing on precise results.
Stainless steel pins are one of the main product areas. These pins are manufactured very carefully to fit various industrial needs. Many customers choose these pins when they need something that resists rust well and stays strong under pressure.
You can get standard stainless steel pins or custom ones from National Bolt & Nut. They make sure the dimensions, the sizes are very accurate.
Their dowel pins include top-grade stainless steel versions. These meet the size requirements of ANSI B18.8.2. There are standard series pins, just slightly oversized for new fits. Oversized series pins are also available, a bit larger for replacement needs.
The stainless steel material makes these pins great for places that are damp or involve chemicals. They also handle extreme hot or cold temperatures quite well. The company works with different stainless steel grades, like the 300 series (304, 316) for excellent rust resistance. They also use 400 series grades when greater hardness and strength are necessary.
Jergens, Inc.
Year Founded: 1942
Main Products
- Kwik-Lok® Pins in stainless steel and other materials
- Workholding solutions
- Hoist rings and lifting solutions
- Specialty fasteners
- Toggle clamps
- Threaded inserts
- Ball Lock mounting systems
Company Description
Jergens, Inc., located in Cleveland, Ohio, has quite a history, starting way back in 1942. That’s when Jack Schron, Sr, and his dad, Christy Schron, started Glenn Tool and Manufacturing Company, initially making standard parts for the war effort right out of their garage and another small rented place. A couple of years later, they set up Jergens Tool Specialty Company just to sell what Glenn Tool made; eventually, the two combined in 1955 and later became Jergens, Inc. in 1969.
Cleveland is still the company’s home base today, and they work out of a pretty large 110,000 square foot manufacturing facility there. This place is ISO 9001:2008 rated, which basically means they follow strict international quality rules for how they make things. The parts made there also meet various tough military and industrial standards like QSLM approval, MS, NAS, DFARS, and RoHS rules for materials.
Right from the start, Jergens followed the idea of “The Standard Components with the Highest Standards.” You could say they were focused on efficient, high-quality manufacturing way before ‘lean manufacturing’ became a common term. That commitment to quality has really shaped the company over all these years.
One product line Jergens is well known for is the Kwik-Lok® stainless steel pins, which they introduced back in 2000. These pins became the company’s biggest product line pretty quickly. They’re designed for jobs where you need to attach and detach things often, but still need a really strong connection that holds tight.
These Kwik-Lok® pins get their strength mainly from 17-4 PH stainless steel, a type known for being tough. It gets a special heat treatment (to Condition H-900, following military specification MIL-H-6875) that makes it reach a minimum hardness called Rockwell C40 – that’s quite hard. Using this specific stainless steel means the pins are strong, they last a long time, and they resist rust well, so they work great even in rough environments or demanding situations.
Conclusion
Finding the best stainless steel pin involves matching the specific type and material grade to the demands of the job. Reliable producers provide a wide selection of both standard and specialized pins suitable for diverse industrial requirements. Careful selection ultimately ensures you get the necessary strength and corrosion resistance for dependable, long-lasting assemblies.
