Round Head Slotted Wood Screws Silicon Bronze

The fully threaded design of the Round Head Slotted Woodscrews Silicon Bronze produced by Xiaoguo® factory ensures a tight fit with the wood during use, and has excellent anti-loosening performance.

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Product Description

When using Round Head Slotted Wood screws Silicon Bronze in practice, there are some incorrect usage methods. To avoid this, we have summarized the following points:

1.Don't exert too much force at the beginning.

First, turn the screw gently towards the slot. Wait until the screw is firmly attached to the wood before gradually increasing the force. Otherwise, the screwdriver is likely to slip out and scratch the workpiece.

2.Keep vertical

If the screwdriver is tilted, it will cause the screw to be twisted, and even the screw may come out from the side of the wood.

3.Don't screw it in too deeply.

The round-head wood screws are already exposed. Forcefully driving them into the wood will cause the lower part of the wood to be crushed.

4.Be careful when using electric tools.

Electric screwdrivers are fast, and the slots are easily "scraped". It's best to start with a low speed and then finish by hand tightening.

5.If the Round Head Slotted Wood screws Silicon Bronze gets stuck and won't turn

Do not continue to forcefully twist it; instead, remove it and check.

Round Head Slotted Wood Screws Silicon Bronze

Mon	2.5	3	3.5	4	4.5	5	5.5	6	7	8	10
P	1	12	1.4	1.6	1.8	2	2.2	2.5	2.8	3	3.5
ds min	2.25	2.75	3.2	3.7	4.2	4.7	5.2	5.7	6.64	7.64	9.64
ds max	2.5	3	3.5	4	4.5	5	5.5	6	7	8	10
dk max	4.63	5.8	6.75	7.65	8.6	9.5	10.5	11.05	13.35	15.2	18.9
dk min	4.23	5.3	6.25	7.15	8	8.9	9.9	10.35	12.55	14.4	18.1
k max	1.98	2.37	2.65	2.95	3.25	3.5	3.95	4.34	4.86	5.5	6.8
k min	1.78	2.07	2.35	2.65	2.95	3.2	3.65	3.94	4.46	5.1	6.4
n min	0.6	0.8	0.9	1	12	12	1.4	16	18	2	2.5
n max	0.85	1.05	1.15	1.35	1.55	1.55	1.75	1.95	2.15	2.35	2.85
r	0.2	0.2	0.4	0.4	0.4	0.4	0.4	0.4	0.5	0.5	0.5
t max	1.3	1.54	1.74	1.98	2.2	2.5	2.7	2.8	3.06	3.66	4.32
t min	0.9	1.06	1.26	1.38	16	1.9	2.1	2.2	2.34	2.94	3.6

The main impact of not pre-drilling

When using Round Head Slotted Wood screws Silicon Bronze in hardwood, if no pre-drilling is done, the following several direct effects will occur. In severe cases, it may lead to the failure of the connection or the destruction of the material.

1.Wood cracking

Hardwood has a high density and tight fibers, with poor toughness. If no pre-drilling is done, when screws are inserted, they will forcibly squeeze the wood fibers. The fibers will be stretched and cracked, resulting in a significant decrease in connection strength, and the screws may come off directly.

2.The torque increases sharply when screwed in.

When no drilling is performed, the Round Head Slotted Wood screws Silicon Bronze needs to both cut and compress the hardwood fibers at the same time, which results in extremely high resistance. This will lead to: manual installation requires a lot of force to turn the screwdriver, making it prone to slipping and causing hand injuries or damaging the workpiece; it is also easy to break the screw; and it will also damage the T-slot.

3.The screw head cannot fit completely.

When drilling holes in hardwood, the wood is overly compressed, resulting in a buildup of fibers beneath the screw head, preventing the flat bottom of the head from fitting smoothly against the surface of the wood.

4.The threads have been worn out.

The hardness of the hardwood may be close to or exceed that of the carbon steel screws. Without drilling, the threads will be subjected to excessive shear force during the cutting process, causing the threads to deform.

5.The wood is partially damaged or charred.

When using an electric tool to screw in forcefully, the high temperature generated by friction will cause the hard wood to undergo carbonization and char, forming black powder.

6.Cannot be disassembled and reassembled

Even if it is forced in, the wood has already undergone severe compression inside, and the original fibers have been damaged. The Round Head Slotted Wood screws Silicon Bronze can hardly be re-tightened again.