Flat Head Machine Screw Flat Head Self Tapping Screw Stainless Steel Screw Head Machine Screw Self Tapping Screw Roofing Screw Head Machine Screw

• Customization: Available
• Material: Stainless Steel
• Type: Countersunk Head
• Model NO.: GB819
• Groove: Cross
• Head Style: Countersunk
• Standard: GB
• Grade: 4.8/ A2-70/ A4-70
• MOQ: 1000PCS
• Packing: Carton+Pallet
• Delivery Time: 7-15 Working Days
• Measuring System: Metric
• Sample: Available
• Application: Industry
• Length: 3mm-100mm
• Advantage: OEM Customized Service Provided
• Item: China Fastener
• Certificate: CE, SGS, ISO
• Thread: Full Thread
• Product Name: Cross Recessed Flat Head Machine Screw
• Service: OEM/ODM
• Quality: High Practicability
• Surface Treatment: Polishing
• Specification: M1.6-M2
• Trademark: Fengye
• Origin: Jiangsu, Taizhou
• Production Capacity: 15tons/Month
• Package Size: 36.00cm * 26.00cm * 36.00cm
• Package Gross Weight: 0.880kg

Product Description

 

Product Standard

Thread specification d			M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	M8	M10
P	Thread pitch		0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1.25	1.5
a	Max		0.7	0.8	0.9	1	1.2	1.4	1.6	2	2.5	3
dk	Theory	Max	3.6	4.4	5.5	6.3	8.2	9.4	10.4	12.6	17.3	20
	Reality	Max=Nominal	3	3.8	4.7	5.5	7.3	8.4	9.3	11.3	15.8	18.3
		Min	2.7	3.5	4.4	5.2	6.94	8.04	8.94	10.87	15.37	17.78
k	Max=Nominal		1	1.2	1.5	1.65	2.35	2.7	2.7	3.3	4.65	5
r	Max		0.4	0.5	0.6	0.8	0.9	1	1.3	1.5	2	2.5
x	Max		0.9	1	1.1	1.25	1.5	1.75	2	2.5	3.2	3.8
Slot number			0	0	1	1	2	2	2	3	4	4
M1	Reference		1.6	1.9	2.9	3.2	4.4	4.6	5.2	6.8	8.9	10
M2	Reference		1.6	1.9	2.8	3	4.1	4.4	4.9	6.6	8.8	9.8
Depth	Type H	Max	0.9	1.2	1.8	2.1	2.4	2.6	3.2	3.5	4.6	5.7
		Min	0.6	0.9	1.4	1.7	1.9	2.1	2.7	3	4	5.1
	Type Z	Max	0.95	1.2	1.73	2.01	2.2	2.51	3.05	3.45	4.6	5.64
		Min	0.7	0.95	1.48	1.76	1.75	2.06	2.6	3	4.15	5.19

Detail Introduction

FAQ

FAQ:

1. Are you a factory or a trading company?
A: We are direct factory and our production line covers all standards and non stands/special screws as per your requirement

2. Where is your factory ?
A: Our factory is in Taizhou,Jiangsu.

3. How long can l get some samples for checking and what about the price?A: For samples we have in stock, we can send you some. lfmake new samples as per your specification, generally speaking, ittakes around 5 working days.
The price of made to print samples will depends on the requirement of material, surface treatment, dimension, etc.Samples costwill be refunded when order quantity reaches to a certain amount.

4.How is the warranty of the products quality control?
A: We hold the tightend quality controlling from very begining to the end and aim at 100% error free.

5. How to get an accurate quotation?Ifyou already have a sample at hand, please send us the existing samples, and we will quote to you once we receive the samples
If there is no sample, please send us the drawing /print ofthe fastener, we will check all the specification including the dimension,surface treatment, material,and our mechanical engineer will evaluate if it will be applied to production.