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Machined Screw Top (Copper)

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AEROSPACE QUALITY
Crafted from 22-gauge solid copper and precision-machined to original specifications, this replacement screw top restores the intended function and aesthetic continuity of your Jacob Bromwell® copper flask.

Keep your Jacob Bromwell® copper flask looking as sharp as possible, or keep a few on hand as spare parts—which is especially useful if you travel with your flask. Designed for smooth threading and a secure, leak-resistant seal, it maintains structural balance while complementing the evolving character of copper. The diamond-pattern knurling ensures confident grip, and the polished finish allows the surface to age naturally over time. An exact continuation of the original component — measured, weighted, and finished with discipline


Imperfectly Perfect: Minor imperfections lend charm, depth, and individuality to each piece and are a natural part of the 100% handmade process. Embrace the imperfect. This is the Jacob Bromwell® way.

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OUR PROMISE

  • Hand-built and shipped directly from the manufacturer
  • Extraordinary craftsmanship backed by our Lifetime Guarantee
  • Ownership that extends beyond possession — a place in a legacy of uncompromising luxury
  • 100% authentic. Zero counterfeit risk. Strict quality standards
  • Pay over time with Shop Pay (0% APR for qualified customers)
  • Buy confidently with easy returns & exchanges
  • Complimentary U.S. shipping on orders $95+
  • Best-in-class customer care — the kind rarely seen today
  • Questions? Our concierge team is here to assist you

DELIVERY

  • Free & fast ground shipping on U.S. orders $95+
  • Ships directly from the Jacob Bromwell® warehouse in Woodridge, Illinois
  • International orders: duties and import taxes may be imposed by the shipping carrier
  • Easy returns & exchanges

PRODUCT HIGHLIGHTS

  • A Jacob Bromwell® Original
  • 22 Gauge, Solid Copper Construction
  • Proprietary SuperPolish™ Finish
  • Made in Small Batches
  • Machined to Aerospace Standards
  • CA Prop 65 Notice
  • Imported

SPECIFICATIONS

  • Item No: PA800
  • Material: Copper
  • Weight: 0.5000 (lbs)
  • Dimensions: 1 x .75 (inches)
  • Made by: Jacob Bromwell® Artisans
  • Care: Hand Wash Only
  • Warranty: Lifetime Guarantee

WHY IT EXISTS

Structure Determines Longevity.

A flask is only as reliable as its seal.

Each Jacob Bromwell® screw top exists to preserve performance, maintain balance, and extend the life of the vessel it serves — without altering its original design.

Exact replacement.
Enduring function.

Permanent by intention.

PRECISION-MACHINED COPPER SCREW TOP

Engineered with aerospace-level precision, the solid copper screw top delivers a secure, dependable seal. Balanced threads and tight tolerances ensure confident carry without excess complication. Twist. Seal. Carry.

Machined Screw Top (Copper)

COPPER — CRAFTED TO ENDURE

Copper is chosen not for trend, but for permanence. Each screw top is machined and finished by hand through a deliberate, multi-step process that reflects generations of refinement. Material matters. So does the way it is shaped.

Machined Screw Top (Copper)

MADE FOR THE MOMENTS THAT MATTER MOST

Given, carried, and kept — through milestones that define a life well lived.

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WHAT OWNERS SAY