Large head screws are the screws with non-standard head or the diameter of the head is much bigger than the standard one. The screws are usually designed according to the client’s request or drawing. The screws are commonly used in sports equipment, machine parts, die fixturing, and clamping. Ever Hardware provides custom-made fasteners and customizable packaging.
Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), is the process of applying a protective zinc coating to steel or iron, to prevent large head screws rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. Galvanizing protects in three ways:
It forms a coating of zinc which, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron. For better results, the application of chromates over zinc is also seen as an industrial trend.
Torx developed in 1967 by Camcar Textron, is the trademark for a type of screw head characterized by a 6-point star-shaped pattern. A popular generic name for the drive is a star, as in star screwdriver or star bits. The official generic name, standardized by the International Organization for Standardization as ISO 10664, is hexalobular internal.
Torx screws are commonly found on automobiles, motorcycles, bicycle brake systems (disc brakes), hard disk drives, computer systems, and consumer electronics. Initially, they were sometimes used in applications requiring tamper resistance, since the drive systems and screwdrivers were not widely available; as drivers became more common, tamper-resistant variants, as described below, were developed. Torx screws are also becoming increasingly popular in construction industries.
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| Category | Large Head Screws |
|---|---|
| Finish | Electro-Plating |
| Thread type | Metric/Imperial/According to Request |
| Material | Stainless Steel/Carbon Steel/Aluminum/Brass/Copper, etc. |
| Brand | Ever Hardware |
| Place of origin | China Mainland |
| Size option | M1.0 to M18/#0 to 1/2″ |
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Those look great! All the specs look perfect.
Perfect ! This is that I need.
Thank you very much.
The bolts are perfect and they’re fits good.
The nut fits perfect on our M2.5 screw part.
Height is also ok.
I tested the bolts this morning and they are perfect. Thank you so much.
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