When you need something to fasten, cushion, or press in a workshop, the right industrial hardware depends on the job itself. The four options here run from a $3.69 compression spring to a $125 antique cast iron press, so the first move is to match the tool to the task rather than working backward from price.
Quick take
The Cooper B-Line BA1-9 lot is a large-quantity fastener option. The United-Carr DOT M239 is an industrial press. The compression spring carries the lowest listed price, and the screw lot is the metric fastener set.
Listed price comparison
| Product | Listed Price | Price Bar | Best For |
|---|---|---|---|
| Cooper B-Line BA1-9 Fastener Lot of 95 | USD 120.00 | Matched batch of fasteners | |
| United-Carr DOT M239 Press | USD 125.00 | Press work in a workshop | |
| Compression Spring, 300mm Length | USD 3.69 | Small-pressure spring stock | |
| Machine Screws Lot | USD 9.99 | Screw projects |
Decision matrix
| If you need... | Choose... | Why... |
|---|---|---|
| A large matched set of fasteners | Cooper B-Line BA1-9 lot | 95 pieces, new open-box |
| A press for shop work | United-Carr DOT M239 | Cast iron body, steel mandrel |
| A simple compression spring | Compression spring | New, open ends, low listed price |
| A batch of machine screws | Screw lot | 20 pieces |
Product notes
Lot of 95 Cooper B-Line BA1-9 Independent Suspension Fastener, T-Bar Size 9/16
This lot gives you 95 pieces of the Cooper B-Line BA1-9 independent suspension fastener in the 9/16 T-bar size, so it is a practical choice when you need a consistent batch rather than a single spare. The condition is new open-box, and the package includes only what is shown, with no extra accessories. The part number is BA1, which helps when you are matching existing hardware. The main limitation is the fixed 9/16 T-bar size: if your suspension or framing system uses a different size, this lot will not adapt. At $120.00, it is worth the price only when you actually need many pieces of this specific fastener in one purchase.
Heavy Duty Antique United-Carr DOT Fastener Co M239 Industrial Cast Iron Press
The United-Carr DOT M239 is a used vintage industrial press built around a cast iron body and a steel mandrel. It is a foot-pedal-operated kick press, which leaves both hands free while you drive the ram-a useful setup for bench work where you need to hold the part. It comes exactly as shown, with no dies or extra components, so plan to source those separately. Since this is an antique used unit, the condition reflects its age and previous shop life. At $125.00, it is the highest-priced item here, but it offers a completely different function from the other three: a complete manually operated press, not just a fastener or spring.
Compression Spring Various Size 2-42mm Diameter & 300mm Length Pressure Small
This compression spring is the least expensive option at $3.69. It is new, with open ends and a 300mm length, and it is made from spring steel. Because it is a 'various size' spring, not a single precision-fit replacement, think of it as general spring stock for small-pressure jobs. The open-end design is straightforward, but you will still want to measure your space and compare it with the diameter options before ordering. At this price, it is a simple, low-commitment way to add a compression spring to a repair or prototype project.
M6 x 65mm Round Head Machine Screws Bolt Lot - 2-5/8" Long Industrial Fasteners
For $9.99, this used lot gives you 20 round head machine screws in M6-1.0 metric thread, each about 2-5/8 inches long. The slotted drive and round head are classic details for restoration work, and the weathered natural patina adds character. The screws are Grade 2 stainless steel, so they are ready for general workshop use. The drawback is the used salvaged condition: expect cosmetic wear and check the threads before using them in anything critical. This is a practical, inexpensive option when you need a batch of metric round head screws with a vintage look and do not need them to be cosmetically perfect.
Final recommendation by use case
If you are restocking a suspension or framing job with a known 9/16 T-bar requirement, the Cooper B-Line lot is the volume-oriented choice. If you want a vintage press as a shop tool or conversation piece, the United-Carr DOT M239 is the standalone press among these four. If you need a simple compression spring, the compression spring gives you flexibility for small experiments. And if you are restoring equipment and need a handful of round head screws with slotted heads, the screw lot is a quick and practical match.
