Best Gummed Clasp Mailing Envelopes in 2026

Reusable, double prong metal clasp is durable and designed for repeated use and eyelets are reinforced . Great for home, office, school, interoffice or mailing.

Perfect for everyday home and business use, clasp envelopes are made from heavyweight 28 lb. brown Kraft stock to give contents extra protection during mailing, storage and handling.

In addition to the clasp closure, these envelopes have a moisture activated seal with deep gumming on the flap to create a permanent seal.

SECURE: Clasp closure plus gummed closure for reliability, security and ease of mind that your contents will securely stay closed in the envelope

DOUBLE SEAL DESIGN -double prong metal clasps with reinforced eyelets and heavily gummed flaps ensure the envelope stays closed and durability

REUSABLE-Great value, each box comes with 100 6x9 clasp envelopes that can be reused multiple times for a bargain

These Quality Park 8 3/4x11 1/2 clasp envelopes are made of extra heavy-duty 32 lb kraft; with clasp & gummed closures to file or ship; 100 per b0x

Envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

Quality Park 6x9 clasp envelopes are a staple of every office; a gummed flap and reusable clasp make them ideal for mailing and storage; 100 per box

Our yellow envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

Quality Park 10x13 clasp envelopes are a staple of every office; a gummed flap and reusable clasp make them ideal for mailing and storage; 100 per box

Our yellow envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

Quality Park 12x15 1/2 clasp envelopes are a staple of every office; a gummed flap & reusable clasp make them ideal for mailing and storage; 100/box

Envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

Quality Park 7x10 clasp envelopes are a staple of every office; a gummed flap & reusable clasp make them ideal for mailing and storage; 100/box

Envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

DESIGNED FOR REPEATED USE: Double prong metal clasp is durable and eyelets are reinforced

PERMANENT SEAL: In addition to the clasp closure, the deep gumming on the flap can create a permanent seal

HEAVY DUTY: Extra durable, 32 lb. brown Kraft stock gives contents extra protection during mailing, storage and handling

Designed for repeated use, double prong metal clasp is durable and eyelets are reinforced.

Constructed from heavyweight 28-lb stock designed to give contents extra protection during mailing, storage and handling.

Feature a moisture activated secure seal with deep gumming on the flap to create a permanent seal.

Clasp envelope on paper stock features a gummed flap closure.

Double prong metal clasps with reinforced eyelets.

Reusable.

Envelopes with Redi-Strip closure are perfect for storing and mailing letters, documents, catalogs, photos and other home and business mailings.

Manufactured from a durable stock for extra protection in mailing, storage and handling.

Redi-Strip provides a clean, quick seal immediately upon contact. Simply peel off the adhesive strip and press to seal. The peel-off strip protects the adhesive from dust for a longer shelf life.

These 9x12 envelopes with a self seal Redi-Tac clasp eliminate USPS charges for metal parts; reusable & thrifty; made of 28 lb kraft paper; 100/box

Reseal your ClearClasp envelope with Redi-Tac seal as many times as needed for circulating interoffice mail; just press and go

A deeply gummed yellow envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

Rugged with a secure seal

28 lb. Kraft with deep gummed flap

Reinforced clasp design

Quality Park 9 x 12 catalog mailing envelopes are ideal for large or heavy inserts; made of thick kraft paper with strong center seams; 250 per box

Sturdy Quality Park envelopes are manufactured from 28 lb. kraft paper; ideal for privacy and durability; a no clasp envelope is also easier to mail

A wide, heavily gummed envelope flap provides a secure, permanent seal for bulky inserts; center seam construction withstands weight and wear & tear

Reusable.

Heavily gummed flap.

Reinforced clasp design

Brightly colored for attention getting mailings

Reinforced clasp

Deep gumming for a secure seal

DOUBLE SEAL DESIGN -double prong metal clasps with reinforced eyelets and heavily gummed flaps ensure the envelope stays closed and durability

SECURE: Clasp closure plus gummed closure for reliability, security and ease of mind that your contents will securely stay closed in the envelope

REUSABLE-Great value, each box comes with 100 10x15 clasp envelopes that can be reused multiple times for a bargain

Clasp envelope on paper stock features a gummed flap closure.

Double prong metal clasps with reinforced eyelets.

Reusable.

Clasp envelope on paper stock features a gummed flap closure.

Double prong metal clasps with reinforced eyelets.

Reusable.

Reusable

Deep gumming for a secure seal

Double prong metal clasp and reinforced eyelet

Designed for repeated use, double prong metal clasp is durable and eyelets are reinforced.

Constructed from heavyweight 28-lb stock designed to give contents extra protection during mailing, storage and handling.

Feature a moisture activated secure seal with deep gumming on the flap to create a permanent seal.

DOUBLE SEAL DESIGN -double prong metal clasps with reinforced eyelets and heavily gummed flaps ensure the envelope stays closed and durability

SECURE: Clasp closure plus gummed closure for reliability, security and ease of mind that your contents will securely stay closed in the envelope

REUSABLE-Great value, each box comes with 100 9x12 clasp envelopes that can be reused multiple times for a bargain

100% post-consumer content.

Manufactured from fully recycled, chlorine free Kraft paper stock.

Traditional metal clasp

Quality Park 9x12 clasp envelopes are a staple of every office; a gummed flap and reusable clasp make them ideal for mailing and storage; 100 per box

Our brown envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat

A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail

quality park 37835

5 x 7-1/2" clasp envelopes

clasp envelopes

Quality Park 9 x 12 catalog mailing envelopes are ideal for large or heavy inserts; made of thick kraft paper with strong center seams; 100 per box

Sturdy Quality Park envelopes are manufactured from 28 lb. kraft paper; ideal for privacy and durability; a no clasp envelope is also easier to mail

A wide, heavily gummed envelope flap provides a secure, permanent seal for bulky inserts; center seam construction withstands weight and wear & tear