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-4003-11 Manual Drive Rotary Latch

The SL-4003-11 manual drive rotary latch uses a handle-operated release built for industrial door panels and special vehicles, with vibration-resistant two-stage engagement.

SKU : SL-4003-11 · 4003-11 · 4003/11

The SL-4003-11 Manual Drive Rotary Latch features a handle-operated manual release structure, built for industrial door panels, special vehicles, and vibrating equipment that demand quick access for maintenance. Mounting is via Ø8.3mm through holes or M8×1.25 / 5/16-18 UNC threaded fasteners. Available in standard and damped versions, and in zinc-plated steel or stainless steel, the latch withstands ultimate loads up to 8000N — combining dust sealing, vibration resistance, and fast, easy installation for high-volume assembly lines.

Rotary Latch Stainless Steel Vibration Resistant Industrial Hardware

Key Features

Handle-operated manual release — quick access for maintenance
Standard / damped versions available
Mounting: Ø8.3mm through holes or M8×1.25 / 5/16-18 UNC threaded fasteners
Material options: zinc-plated steel or stainless steel
Ultimate load capacity: 8000N — heavy-duty rating
Vibration-resistant & dust-sealed design for harsh environments
Fast installation, suited to high-volume assembly
OEM volume supply and project customization supported

Detailed Specifications

Model	Grade & Direction	Mounting Method	Drive Method	Style	Material
SL-4003-11-11	Single stage (optional double stage), left	F8.3 through hole (optional M8x1.25 thread, 5/16-18 thread)	Manual Drive	Standard	Galvanized Steel (Optional Stainless Steel)
SL-4003-11-12	Single stage (optional double stage), left	F8.3 through hole (optional M8x1.25 thread, 5/16-18 thread)	Manual Drive	with damping	Galvanized Steel (Optional Stainless Steel)
SL-4003-11-21	Single stage (optional double stage), left	F8.3 through hole (optional M8x1.25 thread, 5/16-18 thread)	Manual Drive	Standard	Galvanized Steel (Optional Stainless Steel)
SL-4003-11-22	Single stage (optional double stage), left	F8.3 through hole (optional M8x1.25 thread, 5/16-18 thread)	Manual Drive	with damping	Galvanized Steel (Optional Stainless Steel)