10435 Flint Glide Polyester Thread — 5,500 yards King Spool is the blue-grey of the dark Glides — struck-flint stony cool, the slate-and-denim dark that neither Graphite nor Navy covers.
Product Details
- Color: 10435 Flint — cool dark blue-grey, mineral and stony; bluer than Graphite, greyer than Navy
- Thread: 40-weight filament polyester, Glide luster — lint-free
- Spool: 5,500-yard king — roughly 6–10 queens at moderate density
- Machines: All major longarms
- Best on: Slate and blue-grey grounds, denim-adjacent quilts, Jeans Cuddle builds
Frequently Asked Questions
- The cool-dark trio — Flint, Graphite, or Navy?
- By where the fabric falls between grey and blue: pure dark greys take Graphite, true navies take Navy, and the wide slate/steel/denim band between them takes Flint. It's the missing middle of the cool darks.
- Why is Flint the denim thread?
- Washed and medium denim is exactly blue-grey — Flint blends where Navy reads too blue and Graphite too flat, which is why denim-look quilts and Jeans Cuddle backings specify it.
- The Jeans system at Linda's?
- Jeans Cuddle 3 or Luxe Hide Jeans on the back, Flint on top — the matched cool blue-grey build, the denim counterpart to the Bluebell/Periwinkle pairing.
- Flint or Smoke on a dark grey?
- Undertone — the warm/cool fork of the darks: warm charcoals take Smoke, cool slate-blues take Flint. Hold both against the fabric and one recedes.
- Bobbin pairing?
- CG3 Magna-Glide — the cool jar — under grey backs; a matched denim blue under Jeans Cuddle.

