Slotted (-) countersunk machine screw

Brand :

SUNCO

Caution

Please note that if the mating part is to be prepared by the customer, it will not fit unless it is over-tapped according to the standard.
Since hot-dip galvanizing results in a very thick coating, please select a product with the same surface treatment for the mating component.
There are some differences from the specifications table. We thank you for your understanding.
The product images are representative only. Specifications may vary by part number, including shape and color.

Product Description

[Basic Shape] Standard (round)
[Mounting Hole Shape] Straight-slot
[Material]SWCH equivalent/brass/SUS304 equivalent/SUS316L/steel/stainless steel
[Surface Treatment] Non-chrome white / trivalent black / trivalent white / bright chromate plating / hot-dip galvanizing / chromate plating / black chromate / nickel plating / Parker / no black coating/
[Thread Nominal (M)] 2/3/4/5/6/8/10/12/14/16/18/20/22/24
[Length L (mm)] 5–150
[Detailed Shape] Countersunk
[Tip Shape] Flat tip
[Thread Type] metric coarse
[Pitch (mm)] 0.4/0.5/0.7/0.8/1.0/1.25/1.5/1.75/2.0/2.5/3.0
[Thread Type] Fully-threaded

External diagram of slotted (-) countersunk machine screw

Nominal diameter (d)	Pitch	dk		k	n		t
Nominal diameter (d)	Pitch	Reference dimensions	Tolerance	Reference dimensions	Reference dimensions	Tolerance	Reference dimensions	Tolerance
M1	0.25	2	0 to -0.3	0.6	0.32	+0.1 -0	0.25	+/- 0.05
M1.2	0.25	2.4		0.8			0.3
M1.4	0.3	2.8		0.85			0.3
M1.6	0.35	3.2		0.95	0.4	+0.15 -0	0.35
M2	0.4	4	0 -0.4	1.2	0.6	+0.15 -0	0.5	+/- 0.1
M3	0.5	6	0 -0.5	1.75	0.8	+0.2 0	0.7	+/- 0.1
M4	0.7	8	0 -0.5	2.3	1		0.9	+/- 0.15
M5	0.8	10	0 -0.6	2.8	1.2		1.1	+/- 0.2
M6	1	12	0 -0.7	3.4	1.2		1.4	+/- 0.25
M8	1.25	16	0 -0.8	4.4	1.6		1.8	+/- 0.3
M10	1.5	20	0 -1.3	5.7	2	+0.25 0	2.5	+/- 0.4
M12	1.75	24		6.7	2		2.5	+/- 0.4
M14	2	27		7.2	3		3.5	+/- 0.5
M16	2	30		7.7
M18	2.5	33	0 -1.6	8.2
M20	2.5	36		8.8	4	+0.3 0	4.5
*M22	2.5	36		13.6			5
*M24	3	39		14.4			5

*M22 and M24 have a countersink angle of 60°.