All Categories

History

  1. Metoree
  2. Fastening Components
  3. Head Hollow Hex Bolts
  4. High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt (Nakajima Koki Co., Ltd.)
High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-BUMAX Hexagon socket head flats bolt M3
High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Nakajima Koki Co., Ltd.

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt
Nakajima Koki Co., Ltd.

Nakajima Koki Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

46.8hours

About This Product

BUMAX is a high-strength stainless steel bolt developed for the purpose of design improvement (downsizing and weight reduction). We use Swedish austenitic steel SUS316L material, without heat treatment, and through heading and rolling during the bolt manufacturing process, we have ensured a strength of 8.8 and 10.9, equivalent to that of steel bolts.

■High strength: 4 times the proof strength of SUS304 (A2-50) and 2 times that of SUS316 (A4-70)

Although it is made of stainless steel, BUMAX satisfies the same strength class 10.9 as steel bolts, and is four times stronger and twice as strong (yield strength ). BUMAX has been able to downsize the 20mm diameter bolt design of SUS304 (A2-50) to 10mm diameter, achieving a weight reduction of one-fourth.

■Corrosion resistance: No corrosion occurred even after 10 years of testing in marine environment.

BUMAX has obtained better results than SUS after 10 years of atmospheric exposure in coastal areas, and has proven three times more corrosion resistant than SUS316 in a 20% sulfuric acid corrosion test. Guaranteed 30 years of corrosion resistance even when used on ships exposed to the sea. We guarantee overwhelming corrosion resistance that surpasses other stainless steel bolts.

■Heat resistance: Guaranteed maximum operating temperature in the atmosphere of 600℃

SUS304/SUS316 can normally be used up to 400℃, but BUMAX can be used up to 600℃, which is 50% higher. For stainless steel bolts whose strength is increased by heat treating martensitic materials, the maximum operating temperature is set at 200℃, one-third of BUMAX. Here too, the high-strength stainless steel bolt BUMAX exhibits outstanding heat resistance compared to all stainless steel bolts.

■Specifications

・Product standards: ISO-106422, JIS B1 1194, DIN7991 ・Material: A4-SS 2343 316L HiMo ・Thread standards: ISO 261/262, JIS B0205/B0209 ・Screw accuracy: 6g ・Strength class: Class 80 ・Tensile strength: 800N/mm2 ・Proof strength: 640N/mm2 ・Shear strength: 520N/mm2 ・Elongation: 0.3d ・Using temperature range: -200℃ to 500℃

  • Product

    High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt

Share this product


1040+ people viewing

Last viewed: 8 hours ago

Free
Get started with our free quotation service - no cost, no obligation.

No Phone Required
We respect your privacy. You can receive quotes without sharing your phone number.

8 Models of High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Head height k Max. (mm) Head diameter dk Min. (mm) Head diameter dk Max. (mm) Body diameter ds Min. (mm) Body diameter ds Max. (mm) Nominal diameter (mm) Pitch p (mm) Socket flat diameter s nominal (mm) Socket flat diameter s Min. (mm) Socket flat diameter s Max. (mm) Socket depth t Min. (mm) Thread length b (mm)
High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket head flats bolt M3

BUMAX Hexagon socket head flats bolt M3

Available upon quote

1.86

5.54

6.72

2.86

3

M3

0.5

2

2.02

2.06

1.1

18

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket head flat head bolt M4

BUMAX Hexagon socket head flat head bolt M4

Available upon quote

2.48

7.53

8.96

3.82

4

M4

0.7

2.5

2.52

2.58

1.5

20

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket flat head bolt M5

BUMAX Hexagon socket flat head bolt M5

Available upon quote

3.1

9.43

11.2

4.82

5

M5

0.8

3

3.02

3.08

1.9

Twenty two

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket flat head bolt M6

BUMAX Hexagon socket flat head bolt M6

Available upon quote

3.72

11.34

13.44

5.82

6

M6

1

4

4.02

4.095

2.2

Twenty four

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket head flat head bolt M8

BUMAX Hexagon socket head flat head bolt M8

Available upon quote

4.96

15.24

17.92

7.78

8

M8

1.25

5

5.02

5.14

3

28

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket flat head bolt M10

BUMAX Hexagon socket flat head bolt M10

Available upon quote

6.2

19.22

22.4

9.78

10

M10

1.5

6

6.02

6.14

3.6

32

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket flat head bolt M12

BUMAX Hexagon socket flat head bolt M12

Available upon quote

7.44

23.12

26.88

11.73

12

M12

1.75

8

8.025

8.175

4.3

36

High strength stainless steel bolt BUMAXⓇ Hexagon socket flat head bolt-Part Number-BUMAX Hexagon socket head flats bolt M16

BUMAX Hexagon socket head flats bolt M16

Available upon quote

8.8

29.01

33.6

15.73

16

M16

2

10

10.025

10.175

4.8

44

Click on the part number for more information about each product

Customers who viewed this product also viewed

Reviews shown here are reviews of companies.

With hexagon socket/other holes-Bossard Co., Ltd.

With hexagon socket/other holes

Bossard Co., Ltd.

400+ people viewing

Last viewed: 10 hours ago

Response time: 5.55 hours

Head Hollow Hex Bolts

70 models listed

Hexalobular hole screw bolt countersunk head-Azumaneji Co., Ltd.

Hexalobular hole screw bolt countersunk head

Azumaneji Co., Ltd.

130+ people viewing

Head Hollow Hex Bolts

2 models listed

Pin / Flat Hexagon Socket Bolt (HE02)-Saima Corporation

Pin / Flat Hexagon Socket Bolt (HE02)

Saima Corporation

110+ people viewing

Last viewed: 2 hours ago

Response time: 0.88 hours

Head Hollow Hex Bolts

3 models listed

Pin/Sara Hexagonal Hole Tapping (HE04)-Saima Corporation

Pin/Sara Hexagonal Hole Tapping (HE04)

Saima Corporation

100+ people viewing

Last viewed: 2 hours ago

Response time: 0.88 hours

Head Hollow Hex Bolts

3 models listed

Pin/Sara Hexagon Socket No Plug (HE62)-Saima Corporation

Pin/Sara Hexagon Socket No Plug (HE62)

Saima Corporation

100+ people viewing

Last viewed: 3 hours ago

Response time: 0.88 hours

Head Hollow Hex Bolts

3 models listed

Hexagon socket head flat head bolt-Wilco Co., Ltd.

Hexagon socket head flat head bolt

Wilco Co., Ltd.

$1.63

80+ people viewing

Response time: 4.83 hours

Head Hollow Hex Bolts

2 models listed

Hexalobular Torx Screw MR Series-Takachi Electric Industry Co., Ltd.

Hexalobular Torx Screw MR Series

Takachi Electric Industry Co., Ltd.

100+ people viewing

Last viewed: 25 minutes ago

Response time: 35.76 hours

Head Hollow Hex Bolts

2 models listed

High strength, high corrosion resistance, high-d 2, non-circular low-torque stainless steel tappin screw-550-Maru Emmako Co., Ltd.

High strength, high corrosion resistance, high-d 2, non-circular low-torque stainless steel tappin screw-550

Maru Emmako Co., Ltd.

340+ people viewing

Response time: 71.34 hours

Head Hollow Hex Bolts

12 models listed

Non -circular low -torque stainless tappin screw sun lock-Maru Emmako Co., Ltd.

Non -circular low -torque stainless tappin screw sun lock

Maru Emmako Co., Ltd.

560+ people viewing

Last viewed: 14 hours ago

Response time: 71.34 hours

Head Hollow Hex Bolts

18 models listed

Hexagon socket head bolt Alloy steel (IN03)-Saima Corporation

Hexagon socket head bolt Alloy steel (IN03)

Saima Corporation

70+ people viewing

Last viewed: 16 hours ago

Response time: 0.88 hours

Head Hollow Hex Bolts
See More Head Hollow Hex Bolts Products

Other products of Nakajima Koki Co., Ltd.

Reviews shown here are reviews of companies.

QCK rotary clamp cylinder-Nakajima Koki Co., Ltd.

QCK rotary clamp cylinder

Nakajima Koki Co., Ltd.

90+ people viewing

Last viewed: 7 hours ago

Response time: 46.78 hours

Air Clamps

2 models listed

Super bearing nut SBN-Nakajima Koki Co., Ltd.

Super bearing nut SBN

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 2 hours ago

Response time: 46.78 hours

Bearing Nuts

3 models listed

Wonder Gun Series W101-Nakajima Koki Co., Ltd.

Wonder Gun Series W101

Nakajima Koki Co., Ltd.

70+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-Ⅲ-LH-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-Ⅲ-LH

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-Ⅲ-TC-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-Ⅲ-TC

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-Ⅲ-LC-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-Ⅲ-LC

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 6 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-A-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-A

Nakajima Koki Co., Ltd.

90+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-Ⅲ-LC-A-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-Ⅲ-LC-A

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-Ⅲ-TC-A-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-Ⅲ-TC-A

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 10 hours ago

Response time: 46.78 hours

Compressed Air Guns
Wonder Gun Series W101-B-Nakajima Koki Co., Ltd.

Wonder Gun Series W101-B

Nakajima Koki Co., Ltd.

80+ people viewing

Last viewed: 5 hours ago

Response time: 46.78 hours

Compressed Air Guns
Products with improved processing efficiency and quality-Nakajima Koki Co., Ltd.

Products with improved processing efficiency and quality

Nakajima Koki Co., Ltd.

80+ people viewing

Response time: 46.78 hours

Tangless insert lock type unified fine-Nakajima Koki Co., Ltd.

Tangless insert lock type unified fine

Nakajima Koki Co., Ltd.

320+ people viewing

Last viewed: 4 hours ago

Response time: 46.78 hours

Sprues

50 models listed


View more products of Nakajima Koki Co., Ltd.

About Company Handling This Product

Nakajima Koki Co., Ltd.

Response Rate

100.0%

Response Time

46.8hrs

  • Japan

Related search keywords

Head Hollow Hex Bolts
Head Hollow Hex Bolts　Nakajima Koki Co., Ltd.
Nakajima Koki Co., Ltd.

This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.

Copyright © 2025 Metoree