Not every fastening challenge looks the same. Sometimes you’re working in a tight corner. Sometimes you need a joint stronger than the metal around it. Sometimes appearance matters just as much as strength. That’s exactly why Buckeye Fasteners offers a full lineup of weld pins — each one engineered for a specific set of real-world demands.
Let’s take a look into what each weld pin style does and when you’d want to use it.
KL Series – When Space Is Tight
The KL Series was made for those frustrating spots where standard tooling just won’t fit. Its narrow spade slides into confined areas with ease, and the rounded head is specifically shaped to mate with keyhole openings. What really sets it apart? The assembly is adjustable — so if a component needs to be repositioned later, you’re not locked in.
Good for: Tight spaces, adjustable assemblies
Material: C1010 Steel
Diameter: .190″
Lengths: 5/16″, 9/16″
JD Series – Clean Welds at the Edge
The JD Series uses a flat, offset spade with two built-in projections that produce clean, consistent welds without tearing up the surrounding surface. It’s especially well-suited for mounting at the edge or end of a sheet — and it’s a go-to choice for hinge pins and pivot points where smooth movement matters.
Good for: Edge mounting, hinges, pivot points
Material: C1010 Steel
Diameter: .218″
Length: 1-1/2″
PG Series – No Hole? No Problem
The PG Series attaches permanently to a surface without needing a mounting hole, thanks to three precision projections on top of the head. It’s a smart choice when you want a clean look on the finished product or when drilling a hole simply isn’t an option. Cold-forged for maximum durability, this pin works great as a bearing surface, stop, or mounting point.
Good for: Concealed or blind applications, clean aesthetics
Materials: C1010 Steel or Stainless Steel
Sizes: Inch and Metric
PH Series – When the Joint Has to Be Bulletproof
Designed for through-hole applications, the PH Series puts three projections under the head to ensure perfect alignment and a rock-solid weld. The resulting joint is frequently stronger than the base metal itself — making this pin the right call for structural supports, hinge pins, and bearing surfaces where failure simply isn’t an option.
Good for: High-strength structural applications, hinges, bearing surfaces
Materials: C1010 Steel or Stainless Steel
Sizes: Inch and Metric
SP Series – Getting Into Corners and Channels
Channels, corners, tight access points — the SP Series handles them all with a right-angle spade that’s designed specifically for spot welding in hard-to-reach areas. Better yet, it works with your existing welding tips and setup, so there’s no need to invest in new equipment. You get fast, economical production without sacrificing performance.
Good for: Limited-access areas, cost-efficient production, hinges and bearings
Materials: C1010 Steel or Stainless Steel
Sizes: Inch sizes readily available
Finding the Right Weld Pin for Your Application
Every weld pin in Buckeye’s lineup solves a specific problem — whether that’s access, strength, appearance, or speed of installation. If you’re not sure which series fits your application, the Advance Sales Team is happy to help you find the right match. Contact us with any of your fastening questions and we will find a solution for you.