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flange socket (steel/stainless steel)【1-1,000 Pieces Per Package】 (CSHHF-ST3B-M12-40)

flange socket (steel/stainless steel) CSHHF-ST3B-M12-40

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[Features]
· Because the seat surface area is large, it prevents indentation (cupping phenomenon) of the seat surface of the tightened object.
· Since the seat surface is integrally molded with the bolt main body, there is absolutely no sagging like with a spring washer.
· The smooth seat surface ensures stable tightening torque and axial force.
· Because the seating area is large, the drilled hole diameter (oversized hole) for the tightened object can be made larger, resulting in smoother mounting work.
· Eliminating the need for a washer greatly reduces the number of parts required.

(i)Caution

The surface treatment listed in the manufacturer's catalog is a representative specification.
For the surface treatment of each product, refer to the specifications and dimension information.
The product images are representative only. Specifications may vary by part number, including shape and color.

Part Number

Configured Part Number is shown.

CSHHF-ST3B-M12-40

Product Specifications
Part Numbers
Catalog

Drawing

Product Specification

	Steel		Stainless steel
Strength class	10.9	12.9	A2-70
Material	Structural steel alloy		SUS304 equivalent
Hardness	32 to 39HRC	39 to 44 HRC	-
Thread accuracy	JIS 6 g^*	JIS 5 g6g^*	JIS 6 g^*
Surface treatment	Black oxide coating		Barrel, passivation

Specifications Table

Flange socket dimensions and accuracy

unit: mm

Nominal thread size (d)	Pitch P	Main body															Flange
		b	ds		dk		k		S			e	t	r	DA	A-B	dc	d w	c
		Reference	Reference dimensions	Tolerance	Reference dimensions	Tolerance	Reference dimensions	Tolerance	Nominal	Maximum	Minimum	Minimum	Minimum	Minimum	Maximum	Maximum	Maximum	Minimum	Minimum
M3	0.5	12	3	0 -0.14	5.5	0 -0.3	3	0 -0.25	2.5	2.58	2.52	2.873	1.3	0.1	3.6	0.2	7.5	6.3	0.6
M4	0.7	14	4	0 -0.18	7	0 -0.36	4	0 -0.3	3	3.08	3.02	3.443	2	0.2	4.7	0.2	9	7.5	0.8
M5	0.8	16	5		8.5		5		4	4.095	4.02	4.583	2.5	0.2	5.7	0.3	11	9.3	1
M6	1	18	6		10		6		5	5.14	5.02	5.723	3	0.25	6.8	0.3	12.5	10.7	1.6
M8	1.25	22	8	0 -0.22	13	0 -0.43	8	0 -0.36	6	6.14	6.02	6.863	4	0.4	9.2	0.4	17	14.6	1.6
M10	1.5	26	10	0 -0.22	16		10	0 -0.36	8	8.175	8.025	9.149	5	0.4	11.2	0.5	21	18	2
M12	1.75	30	12	0 -0.27	18		12	0 -0.43	10	10.175	10.025	11.429	6	0.6	14.2	0.7	24	20.5	2.5

● For other dimensions, refer to JIS B 1176-1974 hex socket head cap screws.

Reference: Surface pressure comparison values between flange sockets and hex socket head cap screws (JIS B1176)

Bolt size	dh JIS B1001 Bolt Hole Class 2 (mm)	Flange Socket dw (mm)	JIS Hex Socket Head Cap Screw dw (mm)	12.9 Permissible Maximum Axial Force N (kgf)	Surface Pressure N/mm² (kgf/mm²)
Bolt size	dh JIS B1001 Bolt Hole Class 2 (mm)	Flange Socket dw (mm)	JIS Hex Socket Head Cap Screw dw (mm)	12.9 Permissible Maximum Axial Force N (kgf)	Flange Socket	Hex Socket Head Cap Screw
M3	3.4	6.3	5.07	3,870 (394)	175 (17.8)	348 (35.5)
M4	4.5	7.5	6.53	6,750 (688)	238 (24.3)	384 (39.2)
M5	5.5	9.3	8.03	10,900 (1,110)	247 (25.2)	405 (41.3)
M6	6.6	10.7	9.38	15,400 (1,580)	276 (28.2)	441 (45.0)
M8	9	14.6	12.33	28,100 (2,870)	271 (27.6)	505 (51.5)
M10	11	18	15.33	44,600 (4,550)	280 (28.5)	498 (50.8)
M12	13.5	20.5	17.23	64,800 (6,610)	347 (35.4)	720 (73.4)

Note: The bolt hole diameter (dh) in the above table is based on JIS B1001 (bolt hole diameter and counterbore diameter), bolt hole diameter class 2.

Mechanical properties and maximum tightening torque (strength class 12.9, anti-rust oil application)

Nominal	Effective cross-sectional area mm²	Minimum tensile load N (kgf)	Yield Load N (kgf)	Maximum permissible axial force N (kgf)	Maximum Tightening Torque (Tf max) (k=0.21) N⋅m (kgf⋅m)
M3	5.03	6,140 (626)	5,520 (563)	3,870 (394)	2.44 (0.25)
M4	8.78	10,700 (1,090)	9,640 (983)	6,750 (688)	5.65 (0.58)
M5	14.2	17,300 (1,760)	15,600 (1,590)	10,900 (1,110)	11.5 (1.17)
M6	20.1	24,500 (2,500)	22,100 (2,250)	15,400 (1,580)	19.5 (1.98)
M8	36.6	44,600 (4,550)	40,200 (4,100)	28,100 (2,870)	47.3 (4.82)
M10	58	70,800 (7,220)	63,700 (6,490)	44,600 (4,550)	93.6 (9.55)
M12	84.3	103,000 (10,500)	92,600 (9,440)	64,800 (6,610)	163 (16.6)

Note: 1. The maximum tightening torque values are based on the assumption that the clamped material is SS400 with a finished surface of approximately 25S, the female thread material is SS400, and the thread accuracy is 6 g or equivalent to class 2.
2. If the material of the tightened part, the finished surface, the female thread material, or the thread accuracy differs, the torque coefficient will change, so separate calculation is required.

Product Feature Details

The recommended tightening torque (Tf) may result in variations in initial tightening force depending on the tool used.
Recommended tightening torque (Tf) = Tool-specific value × maximum tightening torque (Tfarmx)

: 30; 45; 60

Part Number
CSHHF-ST3B-M12-40

Part Number	Standard Unit Price	Number of pc(s). included in pkg.	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Nominal of Thread (M)	Length L or l (mm)	Material	SurfaceTreatment	Pitch (mm)	Screw Type	Strength Class (Steel)	Sales Unit	Strength Class (Stainless Steel)	Application	Material Details	Surface Treatment Details	Size (Notation With X)
	MYR 374.59	60 Pieces Per Package	1 Pack(s)	Available	10 Day(s) or more	-	12	40	[Steel] Steel	[Trivalent Chromate] Trivalent Black	1.75	Complete thread	10.9	Box/package	-	-	Structural steel alloy	-	M12×40

Product TOP

Basic Information

Basic Shape	Standard (Round)	Mounting Hole Shape	Hex Socket	Additional Shape	Flanged
Thread Type	Metric coarse

Please check the type/dimensions/specifications of the part CSHHF-ST3B-M12-40 in the flange socket (steel/stainless steel) series.

Configure

1 Part Numbers

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Configure Remaining Specifications

Completed

Specification/Dimensions

Strength Class (Stainless Steel)
A2-70
Clear
Application
- Standard
Clear
Surface Treatment Details
- BK treatment (less likely to peel off than paint)
Clear
type
- CSHHF
- CSHHF-ST-M
- CSHHF-ST3B-M
- CSHHF-ST3W-M
- CSHHF-STC-M
- CSHHF-STCB-M
- CSHHF-STGSC-M
- CSHHF-STH-M
- CSHHF-STN-M
- CSHHF-STU-M
- CSHHF-SUS-M
Clear
Nominal of Thread (M)
3

4

5

6

8

10

12
Clear
Length L or l (mm)
5

6

8

10

12

14

15

16

18

20

22

25

30

32

35

40

45

50

55

60

65

70

75

80

90

100
Clear
Material
- Steel
  - Steel
- Stainless Steel
  - Equivalent to SUS304
  - Stainless Steel
Clear
SurfaceTreatment
- No
- Black oxide coating
- Black Oxide Coating
- Trivalent Chromate
  - Trivalent Black
  - Trivalent White
- Bright Chrome Plating
  - Bright Chromate Plating
- Chromate Plating
  - Black Chromate
  - Chromate Plating
- Nickel Plating
  - Nickel Plating
- Chrome Plating
  - Chrome Plating
- Dacromet
- Anti-Seizure Coat
- Tin Plating
  - Tin cobalt
- Black Paint
  - Black Paint
Clear
Pitch(mm)
0.5

0.7

0.8

1

1.25

1.5

1.75
Clear
Screw Type
- Complete thread
- Half Thread
Clear
Strength Class (Steel)
10.9

12.9
Clear
Sales Unit
- Low Quantity (can be purchased from one)
- Box/package
Clear
Material Details
- Structural steel alloy
Clear

Days to Ship

All

4 Day(s) or Less

5 Day(s) or Less

6 Day(s) or Less

7 Day(s) or Less

8 Day(s) or Less

10 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
CSHHF-ST-M10-30
CSHHF-ST-M10-35
CSHHF-ST-M10-40
CSHHF-ST3B-M12-45
CSHHF-ST3B-M12-50
CSHHF-ST3B-M12-60

Standard Unit Price	Number of pc(s). included in pkg.	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Nominal of Thread (M)	Length L or l (mm)	Material	SurfaceTreatment	Pitch (mm)	Screw Type	Strength Class (Steel)	Sales Unit	Strength Class (Stainless Steel)	Application	Material Details	Surface Treatment Details	Size (Notation With X)
MYR 3.54		1 Piece(s)		5 Day(s) or more	10	10	30	[Steel] Steel	Black Oxide Coating	1.5	Complete thread	-	Low Quantity (can be purchased from one)	-	Standard	-	-	-
MYR 4.04		1 Piece(s)	Available	5 Day(s) or more	10	10	35	[Steel] Steel	Black Oxide Coating	1.5	Complete thread	-	Low Quantity (can be purchased from one)	-	Standard	-	-	-
MYR 4.32		1 Piece(s)	Available	5 Day(s) or more	10	10	40	[Steel] Steel	Black Oxide Coating	1.5	Half Thread	-	Low Quantity (can be purchased from one)	-	Standard	-	-	-
MYR 381.51	60 Pieces Per Package	1 Pack(s)	Available	10 Day(s) or more	-	12	45	[Steel] Steel	[Trivalent Chromate] Trivalent Black	1.75	Complete thread	10.9	Box/package	-	-	Structural steel alloy	-	M12×45
MYR 327.03	50 Pieces Per Package	1 Pack(s)	Available	10 Day(s) or more	-	12	50	[Steel] Steel	[Trivalent Chromate] Trivalent Black	1.75	Half Thread	10.9	Box/package	-	-	Structural steel alloy	-	M12×50
MYR 356.72	50 Pieces Per Package	1 Pack(s)		10 Day(s) or more	-	12	60	[Steel] Steel	[Trivalent Chromate] Trivalent Black	1.75	Half Thread	10.9	Box/package	-	-	Structural steel alloy	-	M12×60

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How can we improve?

flange socket (steel/stainless steel)【1-1,000 Pieces Per Package】 (CSHHF-ST3B-M12-40)

(i)Caution

Drawing

Product Specification

Specifications Table

Flange socket dimensions and accuracy

Reference: Surface pressure comparison values between flange sockets and hex socket head cap screws (JIS B1176)

Mechanical properties and maximum tightening torque (strength class 12.9, anti-rust oil application)

Product Feature Details

Basic Information

Configure

Specification/Dimensions

Strength Class (Stainless Steel)

Application

Surface Treatment Details

type

Nominal of Thread (M)

Length L or l (mm)

Material

SurfaceTreatment

Pitch(mm)

Screw Type

Strength Class (Steel)

Sales Unit

Material Details

Days to Ship

Specify Alterations

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