Samples, MOQ & Lead Time FAQs | Custom Options & Finishes - Four Brothers

Samples, MOQ & Lead Time FAQs | Since 1976, Four Brothers has provided OEM manufacturing solutions for metal components, garment accessories, and decorative hardware. Our core capabilities include stamping, deep drawing, die casting, and custom tooling to support both standard products and customized requirements.

Samples, MOQ & Lead Time FAQs

Learn about sample lead times, tooling schedules, minimum order quantities, and production lead times. These FAQs provide an overview of the key timing and order requirements before starting a project.


How is button size measured?

Button size is measured by diameter and is commonly expressed in lignes (L), millimeters (mm), or inches. Please refer to the conversion table below for common button sizes.

Ligne (L)Millimeter (mm)Inch
12L7.5 mm5/16"
13L8.0 mm11/32"
14L9.0 mm11/32"
15L9.5 mm3/8"
16L10.0 mm5/16"
17L10.5 mm7/16"
18L11.5 mm15/32"
20L12.5 mm1/2"
22L14.0 mm9/16"
24L15.0 mm5/8"
26L16.0 mm21/32"
28L18.0 mm23/32"
30L19.0 mm3/4"
32L20.0 mm13/16"
34L21.0 mm27/32"
36L23.0 mm7/8"
38L24.0 mm15/16"
40L25.0 mm1"

Button Size Chart

What is the sample lead time?

Sample lead time is typically about 5–7 business days with an existing mold and about 2–3 weeks when new tooling is required.
• Existing mold: About 5–7 business days.
• New tooling: About 2–3 weeks for tooling fabrication and initial sampling.
Sample quantities are usually flexible depending on the project.
Lead time may vary depending on project requirements.

What are your MOQ and production lead time?

MOQ is typically 5,000–10,000 pieces, and production lead time is usually 2–3 weeks after sample approval and order confirmation.
• MOQ: Typically 5,000–10,000 pcs, real quantity depending on product size and material.
• Production lead time: Usually 2–3 weeks after sample approval and order confirmation.
Urgent schedules can be discussed.


Four Brothers FAQ: Samples, MOQ & Lead Time FAQs

Use the snap button size chart to convert Ligness (L') and mm quickly when selecting hardware for garments and accessories.

Four Brothers also provides plating color standards and acrylic/glass stone color references to reduce sampling delays and miscommunication.

Send your target size, finish, and application—our team can recommend matching snaps, rivets, studs, and buttons.