Frequently Asked Questions
Custom Screw Machine Products

1. Do you stock parts?

We do not stock screw machine parts for resale. We do inventory custom screw machine parts for customers against open orders as part of a Vendor Managed Inventory program.

2. What materials do you utilize?

We produce screw machine parts from aluminum, brass, copper, steel, and stainless steel, as well as some specialty metals upon request.

3. What are the types of machining you perform?

We produce high-precision screw machine parts on a variety of equipment; Davenport and Acme Screw Machines, CNC Lathes, and CNC Turning Centers. We support those products with secondary operations utilizing CNC mills, drilling, and tapping machines.

4. What are your minimum quantity requirements?

We produce orders as small as 100 pieces on our CNC equipment and as large as several million parts on our multi-spindle screw machines.

5. Do you do prototype work?

We are not a prototype shop, but we do an extensive amount of prototype work for our existing customers as part of their product development efforts focusing on providing our value engineering expertise to them.

6. Are all parts volume sensitive?

Yes, every part must absorb an equal portion of its set-up costs. The complexity of the part and the number of parts ordered are key cost drivers.

7. Do you make screws?

No, screws are typically made using a different process. We do make a wide variety of custom fasteners, standoffs, connectors, and inserts, as well as many custom mechanical components.

8. What are your size limitations?

• Davenport Screw Machines can produce parts from 1/8” diameter to 7/8” diameter
• Acme Screw Machines have a capacity up to 2” in diameter
• CNC Lathes have a 6” capacity
• CNC Turning Centers can provide Swiss machine tolerances up to 1” in diameter

9. Are prints and drawings always required?

A drawing is always preferred, but we can reverse engineer most screw machine parts.

10. In what file format can we accept drawings?

11. Do you do part design?

No, our ISO certification does not cover product design. We do work extensively with our customers in the area of design improvement, quality enhancements, and value engineering of their screw machine parts.

12. How are our products shipped?

We ship via UPS, common carrier, or any means specified by our customer. All our products are shipped FOB Anaheim, unless we are requested to include shipping in the part price.

13. What about outside processes and subassemblies?

We can provide heat treating, plating, special finishes, polishing, and grinding through our network of quality service providers.

We also can produce subassemblies utilizing our parts and specialized packaging.