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Box of 500 white #A-10 machine insertable envelopes with rounded flaps

WESTERN STATES

WESTERN STATES #A-10 Machine Insertable Envelopes 24# White 500

SKU CH-259J-7FQXM

White sulphite announcement envelopes sized #A-10 for machine inserting, 24 lb stock with 92 % brightness and rounded flaps, box of 500

  • Machine-ready design speeds bulk mailings
  • SFI-certified white sulphite supports responsible sourcing
  • 92 % brightness gives crisp, professional appearance
  • Vellum finish ensures smooth feeder performance
  • Rounded 1-3/4" flap enables reliable automatic sealing

Machine Insertable Envelopes

These #A-10 machine insertable envelopes are designed for high-volume mailings that run through automatic inserting equipment. The box contains 500 white sulphite envelopes with a 24 lb basis weight and a 92 percent brightness level. A vellum finish gives each envelope a smooth, professional feel for business correspondence.

Upgrade from Hand-Inserted Stock

Switching to machine insertable envelopes removes the bottleneck of manual stuffing and reduces jam rates on inserting equipment. The two side seams under construction and 1-3/4 inch rounded flap down are engineered for reliable feeding through automatic folders and inserters. The jump is worth it when mailing volumes make hand insertion impractical or when equipment compatibility requires a specific flap style.

Suited for Automated Mailrooms

These envelopes suit offices, print shops and mail houses that process announcement-size mail on inserting machines and need SFI certified sulphite paper. Buyers who hand-fold letters or use non-standard flap dimensions should look at other options. The specific #A-10 dimensions and rounded flap profile mean they will not fit every inserter or every document size.

Highlights

  • Machine-ready design speeds bulk mailings
  • SFI-certified white sulphite supports responsible sourcing
  • 92 % brightness gives crisp, professional appearance
  • Vellum finish ensures smooth feeder performance
  • Rounded 1-3/4" flap enables reliable automatic sealing

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

Will the 6 x 9-1/2 inch dimensions fit my #A-10 inserting machine?

The #A-10 size is the standard machine-insertable announcement format, so it matches equipment designed for that designation.

How do I load the 1-3/4 inch rounded flaps so they don't jam?

Load the stack with flaps facing down and forward; the rounded flap and two side seams under construction feed smoothly through automatic inserters.

When should I replace the box of 500 envelopes?

Replace the box once the 500-count supply runs low; the 24 lb sulphite stock with 92% brightness maintains consistent feeding throughout the run.

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