What is your minimum order quantity?

Our MOQ starts from 50 pieces per SKU, for both catalog items and custom OEM programs. Lower quantities for prototype or trial orders are negotiable — tell us about your project and we will work it out with you.

What is the typical lead time?

Standard products: 2-4 weeks. Custom projects: 4-8 weeks depending on tooling and approval process.

Do you support ODM / OEM projects?

Absolutely. Our engineering team can develop custom locks, latches and handles from concept to mass production.

Can you ship samples for evaluation?

Yes, sample orders usually ship within 3-5 business days by air courier.

How do I request a quotation?

Use the contact form or email us with product SKU, estimated quantity and target market. We reply within 24 hours.

Rotary latch

SL-4000-20 Extended Vertical Drive Rotary Latch

The SL-4000-20 extended vertical drive rotary latch fits industrial enclosures and equipment doors where standard vertical drive space is limited, providing reliable rod-driven latching in a compact envelope.

SKU : sl-4000-20 · 4000-20 · 4000/20

The SL-4000-20 Extended Vertical Drive Rotary Latch is engineered for industrial enclosures and equipment doors where standard vertical drive space is limited or a longer drive stroke is required. Its extended drive structure delivers dependable latching in single-stage or dual-stage configurations, with left-hand and right-hand orientations to fit any door layout. Mounting is flexible via a Ø6.4mm through hole or M6×1 threaded connection. Available in zinc-plated steel or stainless steel, the latch accommodates a pin strike up to 9.6mm and handles ultimate loads up to 3300N — making it a reliable choice for OEM volume supply and custom-built applications.

Rotary Latch Stainless Steel Industrial Hardware Enclosure Hardware

Key Features

Extended vertical drive design — ideal for limited drive space or long-stroke requirements
Single-stage / dual-stage latching options
Left-hand / right-hand orientations available
Flexible mounting: Ø6.4mm through hole or M6×1 thread
Material options: zinc-plated steel or stainless steel
Maximum pin strike: 9.6mm
Ultimate load capacity: 3300N
OEM bulk supply and customization supported

Detailed Specifications

Model	Grade & Direction	Mounting Method	Drive Method	Material
SL-4000-11-20 -10	Single stage (optional double stage), left	Ф6.4 through hole (optional M6x1 thread)	Extended Vertical Drive	Galvanized Steel (Optional Stainless Steel)
SL-4000-21-20 -10	Single pole (optional double pole), right	Ф6.4 through hole (optional M6x1 thread)	Extended Vertical Drive	Galvanized Steel (Optional Stainless Steel)