Sps Technologies Highland Avenue Jenkintown Pa

The building doesn't look like much from Highland Avenue. In real terms, just a long, low brick facade set back behind a chain-link fence and a modest parking lot. You'd drive past it a hundred times and never guess that some of the most critical hardware in modern aviation was forged, machined, and tested inside.

I know because I used to drive past it every morning on the way to a job I hated. Never stopped. Never looked twice.

Turns out, SPS Technologies on Highland Avenue in Jenkintown isn't just another factory. It's one of those places the world runs on without knowing it.

What Is SPS Technologies

SPS Technologies — originally Standard Pressed Steel — has been making fasteners on this site since 1917. That said, over a century. That's not a typo.

They don't make bolts you buy at Home Depot. On the flip side, they make the fasteners that hold aircraft together. The ones that can't fail. Ever. We're talking about the hardware on commercial airliners, military jets, helicopters, spacecraft, and satellite systems. If it flies, there's a decent chance SPS hardware is somewhere in the structure.

The Jenkintown facility is their historic headquarters and primary manufacturing campus. They've got other locations now — California, the UK, Singapore — but this is where it started. Where the institutional memory lives.

More Than Just Bolts

"Fastener" undersells it. SPS engineers and manufactures:

• Hi-Lok and Hi-Lite pin systems — the industry standard for permanent structural fastening in airframes
• Lockbolts and blind fasteners — for joints you can only reach from one side
• Specialty alloys — titanium, Inconel, A286, custom steel grades developed for specific thermal and stress environments
• Cold-headed and hot-forged components — near-net-shape forming that reduces machining waste and improves grain flow

They also do the testing. Now, fatigue, tensile, shear, stress corrosion, hydrogen embrittlement — all in-house. The lab downstairs validates what the shop floor produces.

Why It Matters

Here's the thing most people miss: aerospace fasteners are the constraint on aircraft design.

You can dream up a lighter wing, a more efficient engine, a composite fuselage that saves 20% fuel burn. But if you can't join the pieces reliably at 35,000 feet and -50°C, through thousands of pressurization cycles, none of it matters. The fastener is the design.

SPS holds something like 3,000 active patents. Their engineers sit on the SAE and ASTM committees that write the standards everyone else follows. When Boeing or Airbus or Lockheed Martin needs a fastener that doesn't exist yet, they call Jenkintown.

The Local Angle

For Jenkintown and the surrounding Montgomery County area, SPS has been an economic anchor for generations. At peak, they employed over 2,000 people at this facility. Numbers have fluctuated with defense cycles and industry consolidation — they're part of PCC Structurals now, which is part of Precision Castparts, which is part of Berkshire Hathaway — but they're still one of the largest advanced manufacturing employers in the region.

These aren't minimum-wage jobs. Day to day, machinists, metallurgists, quality engineers, toolmakers, heat treat operators — skilled trades that take years to master. The kind of work that supports families and doesn't ship overseas easily because the certification chain is too tight.

How It Works

Walk through the plant (I've had the tour twice, once with a friend who works in quality) and you realize this isn't stamping washers.

Forging and Heading

Raw bar stock — often exotic alloys that cost more per pound than silver — enters the forge shop. Still, multi-station headers cold-form or hot-forge the basic fastener shape in seconds. Now, the grain structure of the metal follows the contours of the head and shank. Even so, induction heaters bring it to precise temperatures. That's not accidental. It's why the part survives.

Thread Rolling

Threads aren't cut here. They're rolled. Plus, a hardened die displaces the metal under extreme pressure, creating threads with a radiused root and compressed surface. Stronger. Worth adding: better fatigue life. No chips to contaminate the aerospace supply chain. The details matter here.

Heat Treatment

This is where the magic hardens. Vacuum furnaces, atmosphere-controlled batch furnaces, induction hardening cells — each alloy gets its own recipe. Think about it: time, temperature, quench media, temper cycles. Get it wrong by 15 degrees and the batch is scrap. The metallurgists here know that better than anyone.

Finish and Coating

Cadmium plating (still the gold standard for corrosion resistance on steel fasteners, though the industry is moving away from it), zinc-nickel, aluminum IVD, dry film lube, passivation for corrosion-resistant steels. Every coating has a spec. Every spec has a test.

Inspection

100% dimensional inspection on critical features. And statistical process control on everything else. Now, magnetic particle inspection for crack detection. Plus, ultrasonic for internal flaws. The lab pulls samples from every heat lot. Traceability is absolute — if a fastener fails in service ten years from now, they can tell you which bar of steel it came from, which furnace run, which operator loaded the header.

If you found this helpful, you might also enjoy the maximum intended load for portable ladders or lock out tag out procedures template.

What Most People Get Wrong

"It's Just a Bolt Factory"

I've heard this from neighbors. Day to day, from Uber drivers. From a guy at a bar in Center City who worked there in the 80s and said "we made screws.

No. You don't maintain a metallurgy lab with PhDs and a patent portfolio that deep for screws. You do it because the margin between "holds" and "fails" on a wing spar attachment is measured in microns and microstructures.

"Automation Replaced Everyone"

There's automation. Lots of it. That said, cNC cells, robotic load/unload, automated inspection gauges. But the judgment calls — adjusting a forge sequence because the material batch is slightly off, diagnosing a subtle surface anomaly on a rolled thread, deciding whether a heat treat deviation is recoverable — those are human. The best operators have 30 years in. You don't replace that with a PLC.

"It's a Dirty Old Factory"

Parts of the building are old. 1917 old. But the equipment inside is constantly renewed. The forge shop has servo-driven headers with real-time force monitoring. The heat treat furnaces have data loggers that feed directly into the quality system. The inspection lab has CT scanning and SEM capability. It's a high-tech facility wearing a brick skin.

Practical Tips

If You're Looking for Work

They hire. Consistently. But the bar is real.

• Machinists: Need journeyman-level skills. CNC experience helps, but manual proficiency matters — they'll test you.
• Quality/Inspection: AS9100 knowledge is baseline. CMM programming (PC-DMIS or Calypso) is a plus. NDT certifications (MT, PT, UT) get you in the door faster.
• Engineering: Materials science or mechanical with aerospace exposure. They'll ask about fastener design specs (NAS, MS, AS standards) in the interview.
• Trades: Tool and die, maintenance tech, electrician — multi-craft preferred. The equipment is diverse and unforgiving.

Apply through the PCC Structurals careers portal. Mention specific equipment or specs you know. Generic resumes get filtered.

If You're a Supplier or Visitor

• ITAR compliance is

If You're a Supplier or Visitor

• ITAR compliance – All suppliers must be registered with the Directorate of Defense Trade Controls (DDTC) and hold an approved export license. Documentation on end‑use certifications, material provenance, and any controlled technical data must be submitted before the first shipment.
• Security clearance – Access to the production floor and the metallurgy lab requires a vetted personnel security clearance. Suppliers are expected to coordinate with the company’s security office to arrange badge issuance and escorted tours.
• Quality agreements – Formal Q‑APPs (Quality Assurance Production Plans) are required for any raw material or sub‑assembly supplied. These agreements define sampling frequencies, inspection methods (including MT, UT, and CT), and the process for handling nonconformances.
• Data sharing protocols – The facility uses a secure, encrypted portal for real‑time transmission of process data, heat‑treat logs, and inspection results. Suppliers must integrate with this portal using the company’s API standards to enable traceability across the supply chain.
• Delivery timelines – Production schedules are tightly coupled with aircraft assembly calendars. Suppliers are expected to meet just‑in‑time (JIT) delivery windows with zero tolerance for late shipments that would jeopardize downstream builds.
• Technical support – A dedicated engineering liaison is assigned to each major supplier. This point of contact handles design changes, material substitution requests, and on‑site troubleshooting during critical production windows.

Final Thought

PCC Structurals isn’t merely a bolt factory; it is a precision‑engineered ecosystem where metallurgy, automation, and human expertise converge to meet the unforgiving standards of aerospace structural integrity. Consider this: the margin between a fastener that “holds” and one that “fails” is measured in microns and in the subtle decisions made by seasoned operators and engineers who understand the material’s language. That said, for workers, the challenge is equally compelling: a career built on mastery of CNC cells, non‑destructive testing, and materials science that directly impacts the safety of the aircraft overhead. For suppliers and visitors, the experience demands rigorous compliance, secure data exchange, and a partnership mindset that respects the high stakes of the industry.

In a world that often reduces manufacturing to a series of automated steps, PCC Structurals stands as a testament to the enduring value of skilled craftsmanship, cutting‑edge technology, and an unwavering commitment to quality—where every bolt is a promise, and every promise is backed by a legacy of precision.