M5 M6 Zinc Screws Tapping Machine 30mm Length for General Industry

• Customization: Available
• Material: Stainless Steel
• Type: Common
• Model NO.: M2-M100
• Rotation Direction: Standard
• Surface Finishing: Standard
• Certification: ISO, RoHS
• Customized: Customized
• MOQ: 100 PCS
• Thread Accuracy: 6h
• Name: Tapping Screws
• Nominal Length: 1d-3D
• Transport Package: Carton Box
• Specification: ST2.2— ST9.5 mm
• Trademark: XYY
• Origin: China
• HS Code: 7318190000
• Production Capacity: 50000pieces
• Package Size: 14.50cm * 8.50cm * 10.50cm
• Package Gross Weight: 0.045kg

Product Description

 

 

Product Description

Self-tapping screws, also known as quick-threading screws or self-drilling screws, are special fasteners designed to form a threaded connection by drilling and biting directly into the material without pre-tapping during installation. Self-tapping screws are widely used in a variety of fields such as construction, furniture manufacturing, machinery assembly, electronic equipment assembly, etc.

Its main features and advantages include:
Features
1. Self-tapping: the front end of the self-tapping screw is designed with a tip and thread similar to a drill bit, which can drill and form threads in the material on its own during installation without the need for pre-drilling or tapping.
2. Fast installation: due to the self-tapping nature, self-tapping screws can be quickly installed The self-tapping screws can be installed quickly due to their self-tapping nature, which improves productivity and installation speed.
3. Multiple Heads and Slot Shapes: The self-tapping screws are available in a variety of head styles, such as pan head, round head, countersunk head, semi-countersunk head, etc., as well as different slot shapes, such as Phillips slot, one-slot, and internal plum blossom groove, etc., in order to adapt to the different application requirements.
4. Material Compatibility: The self-tapping screws are suitable for use with a wide range of materials, including metal (e.g., steel, aluminium), plastics, wood, etc., and the selection of the specific type and The selection of specifications should be based on the hardness and thickness of the material.
5. Locking function: Some self-tapping screws are designed with a locking mechanism that prevents the screws from loosening under vibration or shock conditions.

Detailed Photos

 

Product Parameters

Wire Thread Insert specifications (Metric)
Thread size	Thread pitch	nominal length of thread insert		Number of turns	major diameter of thread insert before assembly		Tap drill size	Drilling depth	length of thread insert when fitted	The quality of 1000 pieces
d	P	×d	L1	W	Dz(min)	Dz(max)	do	L3	L2	kg
2	0.4	1d	2	2.9	2.60	2.80	2.1	3.6	1.6	0.02
		1.5d	3	4.9				4.6	2.6	0.03
		2d	4	6.9				5.6	3.6	0.05
		2.5d	5	8.9				6.6	4.6	0.06
		3d	6	10.9				7.6	5.6	0.07
2.5	0.45	1d	2.5	3.5	3.30	3.50	2.6	4.3	2.1	0.03
		1.5d	3.75	5.9				5.6	3.3	0.06
		2d	5	8.1				6.8	4.6	0.08
		2.5d	6.25	10.5				8.1	5.8	0.1
		3d	7.5	12.9				9.3	7	0.12
3	0.5	1d	3	3.9	3.80	4.00	3.1	5	2.5	0.07
		1.5d	4.5	6.3				6.5	4	0.11
		2d	6	8.7				8	5.5	0.14
		2.5d	7.5	11.1				9.5	7	0.18
		3d	9	13.5				11	8.5	0.22
3.5	0.6	1d	3.5	3.7	4.42	4.60	3.7	5.9	2.9	0.1
		1.5d	5.25	6.3				7.65	4.75	0.18
		2d	7	8.7				9.4	6.4	0.25
		2.5d	8.75	11.2				11.15	8.15	0.33
		3d	10.5	13.3				12.9	9.9	0.39
4	0.7	1d	4	3.7	5.05	5.25	4.2	6.8	3.3	0.12
		1.5d	6	6.1				8.8	5.3	0.2
		2d	8	8.4				10.8	7.3	0.27
		2.5d	10	10.9				12.8	9.3	0.38
		3d	12	13.2				14.8	11.3	0.45
5	0.8	1d	5	4.3	6.35	6.60	5.2	8.2	4.2	0.22
		1.5d	7.5	6.9				10.7	6.7	0.36
		2d	10	9.7				13.2	9.2	0.49
		2.5d	12.5	12.3				15.7	11.7	0.68
		3d	15	14.8				18.2	14.2	0.8
6	1	1d	6	4.2	7.60	7.85	6.3	10	5	0.41
		1.5d	9	6.9				13	8	0.67
		2d	12	9.6				16	11	0.91
		2.5d	15	12.3				19	14	1.2
		3d	18	14.6				22	17	1.5
7	1	1d	7	5.3	8.65	8.90	7.3	11	6	0.8
		1.5d	10.5	8.2				14.5	9.5	1.23
		2d	14	11.1				18	13	1.66
		2.5d	17.5	14.3				21.5	16.5	2
		3d	21	17.4				25.5	20.5	2.4
8	1.25	1d	8	4.7	9.85	10.10	8.3	13	6.8	0.94
		1.5d	12	7.4				17	10.8	1.51
		2d	16	10.6				21	14.8	2.07
		2.5d	20	13.5				25	18.8	2.8
		3d	24	16.4				29	22.8	3.4
8	1	1d	8	6.1	9.85	10.10	8.3	12	7	0.78
		1.5d	12	9.5				16	11	1.19
		2d	16	12.9				20	15	1.6
		2.5d	20	16.5				24	19	2.63
		3d	24	19.9				28	23	3.6
9	1.25	1d	9	5.3	10.85	11.10	9.4	14	7.75	0.75
		1.5d	13.5	8.6				18.5	12.25	1.83
		2d	18	11.9				23	16.75	2.9
		2.5d	22.5	15.3				27.5	21.25	4.01
		3d	27	18.1				32	25.75	4.92
10	1.5	1d	10	5	12.10	12.50	10.4	16	8.5	1.8
		1.5d	15	8.1				21	13.5	2.85
		2d	20	11.2				26	18.5	3.9
		2.5d	25	14.2				31	23.5	5.47
		3d	30	17.2				36	28.5	6.6
10	1.25	1d	10	6.1	12.10	12.50	10.3	15	8.8	1.75
		1.5d	15	9.7				20	13.8	3.05
		2d	20	13.1				25	18.8	4.36
		2.5d	25	16.9				30	23.75	5.66
		3d	30	20.1				35	28.75	7
10	1	1d	10	7.6	12.10	12.50	10.3	14	9	1.24
		1.5d	15	12.1				19	14	1.9
		2d	20	16.3				24	19	2.55
		2.5d	25	20.7				29	24	3.1
		3d	30	25				34	29	3.7

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FAQ

1. What is the difference between self-tapping screws and normal screws?
-Self-tapping screws: The front end is designed with a drill-like tip that can drill and form threads on its own during installation without pre-tapping.
Ordinary screws: need to be pre-tapped in the material before installation, otherwise it will easily lead to screw damage or material rupture.
2. How to choose the right self-tapping screws?
-Material: Select the appropriate size of self-tapping screws according to the hardness and thickness of the installation material.
-Size: The diameter and length of the screw should match the thickness of the material to be fixed.
-Thread type: Select coarse or fine threads according to the material.
-Head and slot shape: Select according to the installation tools and application requirements.
3. Do I need to pre-drill holes when installing self-tapping screws?
-Usually, pre-drilling is not required when installing in softer materials (e.g. wood, plastic). However, in hard materials (e.g. metal) or thicker materials, pre-drilling can reduce the risk of screw breakage.
4. Why do self-tapping screws sometimes break?
-The material is too hard: the screw is difficult to penetrate, resulting in over-torque and breakage.
-Too large or too small pre-drilled holes: Unsuitable pre-drilled holes can lead to uneven forces on the screw, making it prone to breakage.
-Excessive torque: When using power tools, improper torque settings may cause the screw to break.
5. How to prevent self-tapping screws from loosening?
-Use locking self-tapping screws: Designed with a special locking structure that prevents the screws from loosening.
-Appropriate torque: Ensure that the screws are tight but not too tight to avoid loosening due to vibration.
-Adding washers: Adding spring washers or lock washers between the screw and the material.
6. What are the materials of self-tapping screws?
-Carbon steel: economical, suitable for general purpose.
-Stainless steel: corrosion resistant, suitable for wet or corrosive environments.
-Aluminium alloy: lightweight, suitable for occasions not subject to heavy loads.
-Copper or brass: good conductivity, suitable for electrical applications.