53mm 53/400 closures mate directly with wide-mouth glass flower jars ranging from 1 oz (3.5g) up to 4 oz (14g) capacities. Standardizing around a 53mm neck finish across multiple jar sizes allows cultivation facilities to use a single cap profile for all retail flower SKU lines.

To source compatible glass bodies, explore our dedicated 53/400 Neck Finish Glass Jars Collection, and cross-reference specifications using our Flower Jar Sizing Chart.

• Smooth & Ribbed Profiles: Available in high-gloss smooth, tactical ribbed, faux wood grain, and silver electroplated finishes.
• Pressure Seal & PE Liners: Hermetic liner choices engineered to trap flower moisture and volatile terpene aromas.

Yes, 53/400 child-resistant closures feature push-and-turn safety mechanisms that comply with statutory state dispensary laws. Internal locking lugs require firm downward torque combined with counter-clockwise rotation to unseat caps from glass jar threads.

Review state-specific retail closure mandates using our State Compliance Regulations Guide.

Polyethylene (PE) foam liners compress tightly against the top glass rim to create an airtight seal against atmospheric oxygen exchange. Eliminating air airflow preserves delicate monoterpenes and prevents cured flower from drying out during shelf storage.

For custom cap branding or pre-applied top labels, review options in our Custom Branding Services Menu.

Pressure-sensitive liners feature torque-activated adhesive that bonds directly to glass jar rims upon initial closure tightening. Self-adhering liners form immediate tamper-evident seals during manual packaging runs without requiring thermal induction sealing machinery.

Inventory ships directly from our Sacramento warehouse so clients can access single units, standard split packs, or master wholesale cases without minimum constraints. Local warehouse stocking eliminates long factory lead times and keeps commercial capping lines operating without delay.