Insights — Fastener Tooling FAQ

1. What products does GXP supply?

GXP supplies tooling for screw, bolt and nut manufacturing, including carbide heading dies, header punches, recess pin punches, flat thread rolling dies, multi-station former punches, trimming dies, knock-out pins and related machine accessories.

2. Where is GXP based?

Geng Xin Precision Co., Ltd., also known as GXP Co., Ltd., is based in Taiwan and was founded in 2010. We support domestic and international customers with custom fastener forming tooling and specification coordination.

3. Does GXP supply customized tooling?

Yes. We review customer drawings, samples, machine specifications and production requirements to define suitable tooling specifications. Please include the fastener material, critical dimensions and required quantity when submitting an inquiry.

4. Who manufactures JD second punches and recess pin products?

JD handles the design and manufacturing of JD second punches and recess pin products in Taiwan. GXP coordinates sales, specifications and quotations, providing a clear point of contact for customer inquiries.

5. What is the difference between a heading die and a header punch?

A heading die supports and forms the fastener body, while a header punch forms the head and, where applicable, its recess. Both tools must be matched to the fastener design, wire material and machine setup.

6. What information is needed to quote carbide heading dies?

Please provide:

• Die case outside diameter and overall length.
• Internal dimensions and carbide insert details, if available.
• Wire diameter and material.
• Finished fastener dimensions and head style.
• Required quantity.
• Tooling drawings or samples for reference.

Please identify critical tolerances clearly on the drawing.

8. What are header punches and recess pin punches used for?

Header punches form the screw head and drive recess. Recess pin punches form the specified recess geometry as part of a compatible tooling assembly. Selection depends on the recess design, head dimensions and holder configuration.

9. What should I provide when requesting a header punch or recess pin quotation?

Please provide the recess type and size, screw head dimensions, punch or pin dimensions, holder specifications, fastener material and required quantity. Include the applicable standard or a detailed drawing to help confirm compatibility.

11. What types of screws can GXP supply thread rolling dies for?

GXP lists thread rolling dies for machine screws, drywall screws, micro screws, wood screws, PT-type screws and customized Taptite extrusion-type applications. Please submit your screw drawing to confirm the required thread and point geometry.

12. What information is required for a flat thread rolling die quotation?

Please provide:

• Thread rolling machine model or die dimensions.
• Screw diameter and thread pitch.
• Thread standard or detailed thread profile.
• Thread length and overall screw length.
• Screw head and point style.
• Blank diameter before rolling.
• Screw material and required quantity.

Drawings and samples are especially helpful for customized profiles.

13. Can GXP supply dies for customized thread profiles?

Yes. Customized thread rolling die inquiries are welcome. Please provide the finished screw drawing, thread profile, point design, machine specifications and blank dimensions so the requirements can be reviewed.

15. What are head trimming dies used for?

Head trimming dies remove excess material to produce the specified fastener head outline, such as a hexagonal or square shape. The tooling must match the head dimensions, material and trimming setup.

17. Does GXP serve overseas customers?

Yes. GXP serves customers across Asia, Europe, Africa, Oceania and the Americas. Markets include India, Saudi Arabia, Turkey, Germany, Poland, Australia, Brazil, Mexico, Canada and the United States.

18. Can I send samples instead of drawings?

Yes. Samples can support an initial review. Please also provide any available dimensions, material details, machine specifications and critical tolerances. Additional information may be required before the final tooling specification can be confirmed.

19. What are the minimum order quantity and lead time?

Minimum order quantity and lead time depend on the product, specification, material and order quantity. Please send your requirements and preferred delivery date so GXP can confirm the applicable terms in the quotation.