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Screws with a countersunk head are typically used in woodworking applications. When building furniture, manufacturers often use countersunk screws so that the heads don't protrude. If the head protrudes out of a piece of furniture, such as a recliner, it will likely be uncomfortable to consumers to use.
Also known as a flat-heat screw, a countersunk screw is a type of screw that's designed to rest flush with the object or surface in which it's inserted. They are called “countersunk screws” because they “sink” into objects and surfaces. They feature a flat head that tapers along the shaft.
A common use is to allow the head of a countersunk bolt, screw or rivet, when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat-bottomed hole that might be used with a socket-head capscrew).
| Item | Factory Price M3 Colorful Anodized Oxide Aluminum DIN7991 Hexagon Socket Countersunk Head Screws | |||
Material | Aluminum 6061, 6065, 7075 | |||
Measurement system | Metric | |||
Model number | 7991 | |||
| Finish | Anodized | |||
Standard | DIN | |||
Diameter | M3-M6 | |||
Length | 6mm-40mm | |||
Certificate | ISO9001-2008 | |||
Customization | Provided | |||
Sample | Provided | |||
Single packaging size | 25*25*16CM | |||
Singe gross weight | 25kg | |||
Package type | (1)Small box packging | |||
(2)25-30kgs/ctn in bulk, 36-48cartons/pallet | ||||
(3)Assortment in poly bag or plastic box | ||||
Delivery time | Quantity | Delivery time | ||
1-1000pcs | 3 days | |||
1001-5000pcs | 7 days | |||
5001-10000pcs | 9 days | |||
＞10000pcs | To be negotiated | |||
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