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Common specifications and sizes of wood screws

Jul 14,2022 / BY DEVELOPERS
Wood screws are similar to machine screws, but the thread on the screw is a special thread for wood screws, which can be directly screwed into wooden components to fasten a metal or non-metal part with a through hole to a wooden component. .
Classification of wood screws:
1. The types of wood screws include cross-recessed countersunk head, cross-recessed semi-recessed head, cross-recessed round head, slotted (slotted) countersunk head, slotted semi-recessed head, slotted round head, hexagonal head, etc.
2. Nominal diameters are 1.6, 2, 2.5, 3, 3.5, 4, 5, 6, 7, 8, 10 and other series.
3. There are 6, 8, 10, 12, 16, 20, 25, 30 series in length.
Common wood screw specifications and dimensions:
Slotted round head wood screws GB 99-86 DIN96
Slotted countersunk head wood screws GB 100-86 DIN97
Slotted countersunk head wood screws GB 101-86 DIN95
Hexagon head wood screws GB 102-86 DIN571
Cross recessed round head wood screws GB 950-86 DIN7996
Cross recessed countersunk head wood screws GB 951-86 DIN7997
Cross recessed countersunk head wood screws GB 952-86 DIN7995
The difference between wood screws and self-tapping screws:
1. Self-tapping screws have high hardness, wide thread spacing, deep threads, and unsmooth surface, as opposed to wood screws.
2. There is no thread at the rear of the wood screw.
3. The thread of wood screw is thin, blunt and soft, and the thread of self-tapping screw is thick, sharp and hard.