307 Surface Bolt
307 Surface Bolt is a flat surface bolt in nickel plated and brass plated finishes, supplied in 2.5, 4.25 and 5 inch lengths. The flat plate form sits closer to the door face than a barrel bolt. This model is listed in 3 sizes, from 2.5″ to 5″. Stock finishes are nickel plated and brass plated.
Available Sizes
- 2.5″
- 4.25″
- 5″

What This Model Gives You
- Surface bolt
- Flat form sits close to the door face
- Nickel and brass plated finishes for visible interior use
- Three lengths cover cabinet through to door applications
How It Is Built
- Flat plate form
- Nickel plated and brass plated finishes
- Surface bolt
Application Scenarios
- Interior doors
- Cabinet doors
- Window shutters
Who It Is For
- Interior door hardware distributors
- Cabinet and furniture makers
- Joinery suppliers
Problems It Solves
- A barrel bolt stands proud of the door and catches on passing traffic
- Plain steel bolts look wrong on a finished interior door
307 Surface Bolt Specification
Every figure below comes from our own product data. Where a value is not published we leave the row out rather than estimate it.
| Product Code | 307 |
|---|---|
| Product Type | Surface Bolt |
| Sizes | 2.5″ · 4.25″ · 5″ |
| Number of Sizes | 3 |
| Material | Steel |
| Finish | nickel plated and brass plated |
| Customization | OEM and ODM to drawing or sample; private label and own label |
| Minimum Order | Very small minimum order quantity, negotiable |
| Shipping Terms | EX Works, FOB, CIF, DDU or DDP by sea, rail or courier |
Materials
- Steel
Manufacturing Process
- Blanking
- Punching
- Press forming
- Assembly
- Plating
- Inspection
- Packing
The Checks This Part Passes
- Material inspection, with failed material returned rather than run
- First lot sample inspection before mass production is released
- Random inspection during mass production covering 30 to 40 percent of output
- Finished goods inspection against the lot
- Mass production stopped at or above 10 percent defective; repair or rework below it
Changing It to Suit You
- OEM and ODM production to your drawing or sample
- Private label or our own label
- Sizes between the listed steps run to order
- Finish changed to your specification, applied after forming
- Retail packing with mounting screws on request
How It Compares
Compared With Barrel bolts
The flat surface bolt projects less and reads as interior hardware; the barrel bolt is the stronger choice outdoors.
Use Guide
- Fit at a height where the bolt is reachable but not in the path of a door handle.
- Check the keeper is square to the bolt before fixing it permanently.
Others in This Family
Questions About the 307 Surface Bolt
Which finish is standard?
Nickel plated and brass plated are the stock finishes.
Is a longer version available?
5 inch is the longest in this profile. For longer throws use the barrel bolt lines.
Which sizes of the 307 Surface Bolt are available?
This model is listed in 3 sizes: 2.5″, 4.25″, 5″. Sizes between the listed steps are run to order.
Can I get a sample of the 307 Surface Bolt before ordering?
Yes. Samples under US$20 in value are free if you have a DHL, TNT, UPS or FedEx account or agree to cover the freight. Above US$20 we ask you to cover the sample and freight cost, and we ship on receipt of payment.
What payment terms do you accept?
We accept T/T, D/P, L/C, Western Union and PayPal.
Ready to Price the 307 Surface Bolt
Tell us the size, the finish and the quantity. If you need a size that is not listed, say so: sizes between the listed steps are run to order.






