What are the types of space-saving bolts?

Mainly divided into low head bolts and ultra low head bolts, according to the thickness of the bolt head. Among them, the thinnest head is only 1mm thick, which can save up to 80% of the space compared to standard bolts (5mm).

What are the types of ultra low head bolts?

Mainly divided into hex socket type, hex head type and star hole type, according to the different installation methods. For the matching wrenches required for tightening the hex socket type and star hole type, refer to Matching Wrenches.

Which parts and components sold by MISUMI are generally used for ultra low head bolts?

Recommended for use with hex posts, round posts and linear guide shafts.

What is the strength class of the ultra low head bolt?

The product strength of SCM435 (equivalent) is classified as 12.9.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Part Number Complete

C-CBSAR4-12

type Nominal of Thread (M) Length L CAD Days to Ship

Specification/Dimensions

type
- C-CBSAR
Clear
Nominal of Thread (M)
2

2.5

3

4

5
Clear
Length L(mm)
3

4

5

6

8

10

12
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day
Clear

Specify Alterations

Ultra Low Cross Recessed Flat Head Screws【50 Pieces Per Package】 (Part Number)

Volume Discount

Check FAQ of this product (4 items)

Brand :

MiSUMi Economy

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Total Price :

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Days to ship :

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Product Description

- Economy series Ultra Low Cross Recessed Flat Head Screws
- Part number for series including of C-CBSAR
- Basic Shape: Standard (Round)
- Head Shape : Ultra Low Head.
- Mounting Hole Shape: (+)Phillips or Cross recessed flat head.
- Bolt Material: Steel SCM435 Equivalent
- Surface Treatment: Trivalent Chromate Treatment.
- Nominal Thread (M): 2, 2.5, 3, 4 and 5.
- Hardness: 32~ 39 HRC
- Strength: 10.9
- Head Strength: 5.8
- Sales unit: Pack (the quantity = 50 Pcs/Pack)

Economy Ultra Low Cross Recessed Flat Head Screws

Ultra Low Flat Head ScrewsUltra Low Flat Head ScrewsSpace Saving Screws

- Ultra-low head profile minimizes space usage, perfect for compact and tight-fit applications.

- Cross recessed flat head allows for better torque application and reduces the risk of slippage during installation.

- Made from SCM435 steel with a strength class of 10.9 and head strength of 5.8, ensuring reliable performance.

- Available in various lengths and thread sizes to meet specific design requirements and enhance versatility.

- All models are in stock with same-day shipping, so you get your screws when you need them.

Economy Ultra Low Cross Recessed Flat Head Screws

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview of Space Saving Bolts

Ultra-thin low head bolt, Space Saving Bolts is a special bolt developed to reduce the height of the screw head. Most suitable for machines and devices where there is no clearance.
Due to its thinner head, it can also be used to fix the appearance panel, more beautiful than standard bolts.

Product Feature of Space Saving Bolts

Feature of Space Saving Bolts 1: The head is driven by a cross hole. Since the width of the original hex socket is limited by the thickness of the thin head bolt, the tightening torque of the cross hole is larger, which makes tightening easier and reduces the likelihood of slippage.
Feature of Space Saving Bolts 2: The thickness of the screw head is larger than that of standard screws, which can save a lot of space and reduce weight. It is mainly used in some small equipment that have high requirements on space or require lightweight.
Feature of Space Saving Bolts 3: The material is SCM435 and the heat treatment for thread strength is grade 10.9. The head is very thin, but the head strength grade can reach 5.8.
Feature of Space Saving Bolts 4: According to the actual design needs, the thread length can be freely specified in the range.
Feature of Space Saving Bolts 5: All models are in stock, allowing same-day shipment.

Dimensional Drawing of Space Saving Bolts

C-CBSAR, Ultra Thin Type, Ultra Low Head Bolt, Cross Bolt, Flat Head Bolt, Flat Head Screw, Ultra Thin Head Bolt, Large Flat Head Bolt

Specifications Overview of Space Saving Bolts

TYPE		Material of Space Saving Bolts	Hardness	Surface Treatment	Strength	Head Strength
C-CBSAR		SCM435 equivalent	32 to 39HRC	Trivalent Chromate Treatment	10.9	5.8

Example Use of Space Saving Bolts

misumi ct-cbsar cbsa MISUMI screw Ultra low head screw Short head screw Screw

Mechanism name of Space Saving Bolts:
Stackable workpiece fixture.

Mechanism function of Space Saving Bolts:
Fixture used to fix the workpiece before the bonding material is hardened.

Role of ultra short head hex socket bolts:
After the ultra short head hex socket bolts are used, the four points can be in a plane, and the thickness of the bolt head is thinner, which saves counterbore space and allows stacking on top.

Application Industries of Space Saving Bolts

Electronic & Electrical Appliances	Smart phone	Medical

Robotics	Semiconductor	Lithium battery

Precautions of Space Saving Bolts

① Space Saving Bolts As the head height decreases, the head tensile strength also decreases accordingly.
② Surface treatment is trivalent white zinc plating, which may have slight difference in color depending on the batch.
③ The cross hole needs to be tightened after being pressed vertically, otherwise it is easy to cause slippage.

Related Products of Space Saving Bolts

Ultra-low head bolt Hex socket on head	Round Post	Hex Post

Typical Space Saving Bolts model: CBSTS3-6	Typical Space Saving Bolts model: PETGR10-150	Typical Space Saving Bolts model: LSBRK13-100
Advantages of Space Saving Bolts: space saving, sufficient stock	Advantages of Space Saving Bolts: easy to mount, suitable for tight spaces	Advantages of Space Saving Bolts: easy to mount, suitable for tight spaces

Specification Table of Space Saving Bolts

Please order of Space Saving Bolts after selecting part number and parameters according to the selection steps

		Part Number (Type·M)	－	L
		C-CBSAR3	－	6

Part Number		L Selection							M×P	A	E	r	e (max)	PH
Type	M	L Selection							M×P	A	E	r	e (max)	PH
C-CBSAR	2	3	4	5	6				2×0.4	4	0.5	Above 0.1	0.4	PH#0
	2.5	3	4	5	6				2.5×0.45	5	0.6		0.7	PH#1
	3			5	6	8	10		3×0.5	6	0.8		0.7	PH#1
	4			5	6	8	10	12	4×0.7	8	0.9	Above 0.2	0.7	PH#2
	5				6	8	10	12	5×0.8	9	1	Above 0.2	1.0	PH#2

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 60; 90

Part Number
C-CBSAR4-12

Part Number	Price	Minimum Order Qty.	Number of pc(s). included in pkg.	Volume Discount	Days to Ship	RoHS	Nominal of Thread (M)	Length L (mm)
	₹ 1,133.00	1 Pack(s)	50 Pieces Per Package	Available	Same day	10	4	12

Basic Information

Detailed Shape	Ultra Low Head	Mounting Hole Shape	Phillips	Material	SCM435 Equivalent
Basic Shape	Standard (Round)	Thread Type	Metric, Coarse	Application	Standard

Please check the type/dimensions/specifications of the part C-CBSAR4-12 in the Ultra Low Cross Recessed Flat Head Screws series.

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

Frequently asked question (FAQ)

Question: What are the types of space-saving bolts?: Answer: Mainly divided into low head bolts and ultra low head bolts, according to the thickness of the bolt head. Among them, the thinnest head is only 1mm thick, which can save up to 80% of the space compared to standard bolts (5mm).
Question: What are the types of ultra low head bolts?: Answer: Mainly divided into hex socket type, hex head type and star hole type, according to the different installation methods. For the matching wrenches required for tightening the hex socket type and star hole type, refer to Matching Wrenches.
Question: Which parts and components sold by MISUMI are generally used for ultra low head bolts?: Answer: Recommended for use with hex posts, round posts and linear guide shafts.
Question: What is the strength class of the ultra low head bolt?: Answer: The product strength of SCM435 (equivalent) is classified as 12.9.

Check other FAQ (1 items) Hide

Product variants

Part Number
C-CBSAR2-6
C-CBSAR2.5-3
C-CBSAR2.5-4
C-CBSAR4-5
C-CBSAR4-6
C-CBSAR4-8

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 (mm)
₹ 1,054.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	2	6
₹ 1,038.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	2.5	3
₹ 1,054.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	2.5	4
₹ 1,000.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	4	5
₹ 993.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	4	6
₹ 1,024.00	50 Pieces Per Package	1 Pack(s)	Available	Same day Stock	10	4	8

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