Spec-Sheet
Retractable Stainless Steel Bollard - 4" x 36" Drop-Down Security Post
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Over 50 years in the industry, demonstrating reliability.
Serving customers across all 50 states.
Products designed for heavy-duty use.
30 Days Return Policy*
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Product Overview
Retractable Stainless Steel Bollard - 4" x 36" Manual Drop-Down.
Heavy-Duty Manual Drop-Down Security Post with Reflective Strip.
Block traffic when you need to. Let it through when you don't. This 4" retractable bollard drops flat into an in-ground sleeve for vehicle access, then locks upright for full perimeter security. SS316 marine-grade stainless steel handles coastal salt air, pressure washing, and wet conditions without rusting or staining.
Review the Product Details below to confirm the correct size, material, mounting style, color, and configuration before ordering.
Key Features
- SS316 marine-grade post. Handles salt, humidity, and pressure washing.
- Manual drop-down operation. No power, no hydraulics, no maintenance.
- SS304 in-ground sleeve. Protects the mechanism underground.
- Reflective strip included. Visible at night without additional lighting.
- Polished finish. Architectural look that never needs repainting.
- Coastal and wet environments. SS316 won't rust where others fail.
- Controlled access. Let authorized vehicles through, then lock it back.
Ideal For
Choose this product if you need:
- Facility safety and traffic-control applications.
- Industrial or commercial areas needing visible protection.
- Projects where the listed dimensions and options match the site.
Not Ideal For
Not ideal if the listed size, mounting method, or configuration does not match the application. Verify all product details before ordering.
Product Details
| Brand | S4 Bollards |
| Product Type | Bollard Accessory |
| Part Number | BMRSS436 |
| Diameter | 4" |
| Above Ground Height | 36" |
| Total Depth | 42.5" |
| Material | SS316 Stainless Steel |
| Sleeve Material | SS304 Stainless Steel |
| Finish | Polished with Reflective Strip |
| Reflective Strip | Yes |
Frequently Asked Questions
What is this product used for?
This product is used for bollard accessory applications where the listed size, material, and installation style match the site requirements.
How do I choose the right option?
Compare the SKU options, dimensions, mounting method, color, and product details shown above before selecting an option.
What should I check before ordering?
Verify measurements, surface conditions, installation requirements, and whether hardware or professional installation is needed for the application.
Return Policy
You can return unused or defective products up to 30 days from the date of order. Some product returns may be subject to restocking fees. Proof of Purchase will be required if we cannot verify your order information. Unless the product is defective or damaged in transit, the customer is responsible for return shipment costs.
Defective or Damaged Products
All shipments received must be immediately inspected for damage. If your order shipped on a freight carrier, any damage needs to be noted on the Freight Receipt before signing for the delivery. An exchange or refund will be provided at no additional cost. If damage is due to misuse or regular wear of the product, the return will be denied.
Order Cancellation
If you need to cancel your order for any reason, please contact us immediately. If the order is canceled prior to shipping, you will be refunded in full. Certain products that are manufactured to order cannot be canceled after the manufacturing process has started.