DIN 7505 Construction Wood Screws Double Flat Head Screw Small Sizes

Head Type

Regardless of a screw’s material, size or length, the shape of its head has a significant impact in how well it works in any particular application. Head designs can be divided into two groups: those that sink flush with the work surface and those that stand proud of it.

Flat head screws have heads designed to automatically sink flush in all but the hardest materials (e.g., rosewood, ebony). Most flat head production screws are self-countersinking: they create their own recess that allows the head to sit flush.

Full thread version

Used when fixing metal to wood. Unlike smooth shank screws, when driving in full thread screws, the top material cannot move along the shank. Instead, it is held in place by the threads.

The Point
A good screw point bites into non-pilot-drilled surfaces rapidly, pulling the screw down quickly and creating an entry hole for the screw’s shank and threads.This needle-sharp point penetrates even the hardest materials — and your fingers, so be careful when handling them!

Plating and Coatings

In the final step of manufacturing, most steel wood screws receive some kind of plating (a metallurgical process done to bare metal screws) or coating (applied to either bare metal screws or already-plated screws). Screws are plated and/or coated for three reasons:

• Prevent Corrosion
• Enhance Appearance
• Reduce Friction

Chipboard Screw Double Flat Head Size Table

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FAQ

Q: Are you trading company or manufacturer ?
A: We have our own factory, which is located in Ningbo, Zhejiang. Both design team & manufacture team will support our products.

Q: What’s your main products? Can customize or not?
A: Our main products are screws.

Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge if we stock, but do not pay the cost of freight.

If you are interested in chipboard screw, Please do not hesitate to email us or call us. Our professional team will assit you to purchased the quality products.

Ningbo Oukailuo Hardware Co., Ltd. was founded in 1999 and is a leading fastener manufacturer. Company passed ISO9001:2015 quality management system certification, and has ROHS, SGS certificate. Our main export markets are North America, Europe, Oceania, Korea, etc.

We have our own heat treatment shop, electroplating shop, Ruspert workshop. The heat treatment process is very important for product hardness, and our technology can ensure it. Electroplating includes galvanization, yellow zinc, black zinc, and green zinc. All galvanization meets ROHS. Salt spray time can be up to 96 hours. Ruspert can do most of the colors. The salt spray time can be 500 hours and 1000 hours.

OuKaiLuo have over 19 years experience inventory management, managing a growing number of customer production lines on-site to ensure ‘just-in-time’ delivery. We offer many variations of Direct Line Feed management to suit individual needs.