Heavy-Duty 12-Point External Cap Head Machine Screw
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Product Highlights
- High Torque Capability: 12-point head design allows greater torque transmission compared to hex bolts.
- Compact Head Design: Suitable for tight and limited-space environments with reduced slippage risk.
- Durable Material Options: Made from high-strength carbon steel, alloy steel, or 304/316 stainless steel.
- Customizable Coatings: Available in zinc-plated, black oxide, plain, or other surface finishes.
- Meets Industry Standards: Conforms to DIN, ANSI, ISO, GB, BSW, JIS, and GOST specifications.
- Precision Threading: Ensures reliable engagement and secure fastening in high-stress environments.
- Wide Size Range: Diameters from M4 to M20 with lengths up to 250mm available.
- Custom Sizes Available: Other sizes can be customized according to customer needs.
Product Attributes
- Customization
- Available
- Material
- Iron
- Type
- Torx-Head Bolt
- Groove
- OEM
- Connection
- Common Bolt
- Head Style
- Slot
- Standard
- DIN, GB, ANSI, BSW, JIS, GOST
- Grade
- 12.9
- R&D Capacity
- OEM;Own Brand;ODM;Others
- Hardness
- According to Standard Grade
- Surface Plating
- White Zinc, Blue Zinc, Yellow Zinc Plating, Nicke
- Load Capacity
- Heavy Load-Bearing
- Strength
- High Tensile, Impact Resistant
- Quality
- Strict QC; Mtc Available
- Application
- Furniture, Household Appliances, Auto, Engine, Co
- Delivery Time
- 7-30days
- Company Type
- Manufacturing and Trading
- Transport Package
- Accordig to Customers Needs
- Specification
- 8.5cm*6cm*8.5cm or Can be customized
- Trademark
- HONGSTEEL
- Origin
- China
- HS Code
- 7378151090
- Production Capacity
- 1000ton/Year
Product Images of Heavy-Duty 12-Point External Cap Head Machine Screw
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Product Description
Heavy-Duty 12-Point External Cap Head Machine Screw
DESCRIPTION
Heavy-Duty 12-Point External Cap Head Machine Screws are high-performance fasteners designed for demanding industrial applications requiring superior strength, tight torque control, and compact head profiles. Manufactured from high-grade alloy or stainless steel, these screws feature a 12-point head which allows for enhanced grip and torque distribution in confined spaces. The external cap head offers better contact with tools, reducing the risk of slippage and wear during installation.
KEY ADVANTAGES
-
High Torque Capability: 12-point head design allows greater torque transmission compared to hex bolts.
-
Compact Head Design: Suitable for tight and limited-space environments.
-
Durable Material Options: Made from high-strength carbon steel, alloy steel, or 304/316 stainless steel for excellent durability and corrosion resistance.
-
Precision Threading: Ensures reliable engagement and secure fastening in high-stress environments.
-
Customizable Coatings: Available in zinc-plated, black oxide, plain, or other surface finishes.
-
Meets Industry Standards: Conforms to DIN, ANSI, and ISO specifications.
APPLICATIONS
-
Aerospace and Defense Systems
-
Automotive Engines and Transmissions
-
High-Performance Machinery and Equipment
-
Construction and Structural Assemblies
-
Power Generation and Turbines
-
Marine and Offshore Hardware
PRODUCT DIAMETERS & LENGTH RANGE
| Diameter (mm) | Inch Equivalent | Length Range (mm) | Length Range (inch) |
|---|---|---|---|
| M4 | 5/32" | 10 - 50 mm | 3/8" - 2" |
| M6 | 1/4" | 10 - 60 mm | 3/8" - 2-3/8" |
| M8 | 5/16" | 12 - 100 mm | 1/2" - 4" |
| M10 | 3/8" | 15 - 120 mm | 5/8" - 4-3/4" |
| M12 | 1/2" | 20 - 150 mm | 3/4" - 6" |
| M16 | 5/8" | 25 - 200 mm | 1" - 8" |
| M20 | 3/4" | 30 - 250 mm | 1-1/4" - 10" |
Note: other size can be customized according to customer needs.

Jiaxing Hongsteel Trading Co., Ltd., in partnership with Ningbo Hongsteel Machinery Co., Ltd., proudly stands as a beacon of excellence in advanced manufacturing and international trade under the prestigious name "Hongsteel". With an illustrious record spanning over 16 years, we have carved a niche in the global market by consistently delivering precision-engineered components and offering unbeatable service worldwide.
As a leading force in both manufacturing and trading, we at Hongsteel specialize in crafting non-standard manufactured parts, fasteners, construction machinery components, electric tool parts, and automotive components, among others. Our commitment to excellence extends to providing fully customized solutions that cater to each client's specific needs, ensuring their utmost satisfaction.
Empowered by a team of highly skilled technicians and cutting-edge production equipment, we at Hongsteel guarantee superior efficiency, rigorous quality control, and unwavering product performance at every phase of production. Our state-of-the-art facilities boast certifications like ISO9001, ISO 17025, and SGS, alongside laboratory testing accreditations, affirming our adherence to international quality standards.
At Hongsteel, our ethos revolves around the core values of "quality first, service foremost, and continuous improvement and innovation" to meet and exceed customer expectations. Our relentless pursuit of excellence is encapsulated in our quality objectives: "zero defects, zero complaints." We warmly invite your inquiries and eagerly anticipate forging long-lasting, prosperous partnerships with clients worldwide.


About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR263955". Items marked "" are certified.
Company Profile
Jiaxing Hongsteel Trading Co., Ltd. And Ningbo Hongsteel Machinery Co., Ltd. Combine the strength of advanced manufacturing and international trade under one trusted name "Hongsteel". With over 16 years of industry experience, we have built a solid reputation for delivering precision-engineered components and reliable service worldwide.
As both a manufacturer and trading company, we specialize in non-standard manufactured parts, fasteners, construction machinery components, electric tool parts, automotive parts, and more. We also offer customized solutions tailored to meet each client's unique requirements.
Backed by skilled technicians and modern production equipment, we ensure high efficiency, strict quality control, and consistent product performance at every stage. Our facilities are certified with ISO9001, ISO 17025, SGS, and laboratory testing accreditations, ensuring full compliance with international quality standards.
At Hongsteel, we are committed to the principle of "quality first, service first, continuous improvement, and innovation to meet customer needs, " while striving to achieve our quality goal of "zero defects, zero complaints. " We warmly welcome your inquiries and look forward to building long-term, successful partnerships with clients around the globe.
"Your satisfaction is our highest priority"
About Our Factory & Business Background
- Address
- No. 6, Haisheng Road, Wuyuan Town, Haiyan County, Jiaxing, Zhejiang, China
Our Production Capability & Technical Expertise
- Main Products
- CNC Machining Parts, Die Casting, Bolt and Nut, Pneumatic Components, Fitting, Reducer, Stamping, Forging, Fasteners, Shaft
FAQ
- What materials are used for these screws?
- They are manufactured from high-grade alloy, high-strength carbon steel, or 304/316 stainless steel.
- Can the size be customized?
- Yes, other sizes can be customized according to customer needs beyond the standard M4 to M20 range.
- What surface finishes are available?
- Available options include zinc-plated, black oxide, plain, and other surface finishes.
- Which industry standards do they meet?
- They conform to DIN, ANSI, ISO, GB, BSW, JIS, and GOST specifications.
- What are the main applications for these screws?
- They are used in aerospace, automotive engines, high-performance machinery, construction, power generation, and marine hardware.
- What is the delivery time?
- The standard delivery time is 7 to 30 days.
- Does the company offer OEM services?
- Yes, the company provides OEM, ODM, and own brand services with R&D capacity.
- What certifications does the manufacturer hold?
- Facilities hold ISO9001, ISO 17025, and SGS certifications with laboratory testing accreditations.
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