Nippon N.S. PRO ZELOS 7 370 Tip Steel Iron Shafts

Nippon N.S. PRO ZELOS 7 370 Tip Steel Iron Shafts

The Nippon N.S. PRO ZELOS 7 370 Tip Steel Iron Shafts redefine what’s possible in lightweight steel, delivering the feel of graphite with the performance of tour-level steel. Built using Nippon’s proprietary NZNS60 alloy, this shaft offers unmatched strength and flexibility at just 73–77 grams. The 370 tip configuration ensures universal head compatibility and consistent fitment across a broad range of iron designs, making it a top-tier choice for custom builds and parallel-tip setups.

ZELOS 7's low kick point and smooth, full-length flex profile create a launch window that promotes effortless carry and stability — even at slower swing speeds. It loads easily, releases cleanly, and provides a uniquely soft impact sensation rarely found in steel. Whether you're transitioning from graphite or just need lighter steel with more responsiveness, the ZELOS 7 370 Tip gives you better timing, more height, and pinpoint control without power loss or harshness.

Can’t find the option you’re looking for? Reach out — we likely carry it or can get it.

IMPORTANT Shipping Details

• Custom-built orders ship in 3–5 business days
• Even expedited shipping follows standard build timelines
• Each order is handled with precision — thank you for your patience!

Need it built?

Add all club components (shaft, head, grip, etc.) to your cart and message us during or right after checkout with your build specs — we’ll assemble your club(s) free of charge. Note: Free builds add 3–5 business days to shipping for custom work.

Nippon N.S. PRO ZELOS 7 .370 Tip Steel Iron Shafts Spec Sheet