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Pan Head Screw

Bugle Head Screw

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Self Drilling Screw

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Screw Kit

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Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

Precision Turned Components

Plastic Bolt
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Home > Products >
Spring Lock Washer
>
Custom GB21 Small Hexagon Head Bolt Stainless Steel
All Category

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

Precision Turned Components

Plastic Bolt
Contact Us
Ms. Amylin
amylin@ybfasteners.com
+8618658229310
wechat
Contact Now
name
  • name
  • name
  • name
  • name
  • name

Custom GB21 Small Hexagon Head Bolt Stainless Steel

Brand Name: YONGBIAO
Model Number: GB21
MOQ: 50000
Price: Negontiation
Packaging Details: Plastic Bag / Paper Box
Payment Terms: T/T
Detail Information
Product Description
Detail Information
Place of Origin:
China
Certification:
ISO 9001
Finish:
Zinc Plated
Sample:
Free Samples
Usage:
For Fastening Metal To Metal
Measurement System:
INCH, Metric
Standard:
DIN, ANSI, GB, JIS, BSW, GOST
Connection:
Common Bolt
Quality:
100% Inspection
Supply Ability:
500 Tons/month
Highlight:

Custom GB21 hexagon head bolt

,

Stainless steel small bolt

,

Hexagon head bolt with washer

Product Description
Custom GB21 Small Hexagon Head Bolt Stainless Steel
GB21 Small Hexagon Head Bolts (Small Hex Head Bolts per GB 21-1976) are Chinese national standard fasteners featuring a compact hexagonal head design with smaller across-flats dimensions compared to standard GB30 hex bolts.
Key Features
  • Compact Head Profile: Reduced hex head width enables installation in tight spaces where standard hex bolts cannot fit, without compromising clamping force.
  • High Tensile Strength: Available up to Grade 12.9 with nominal tensile strength reaching 1,000 MPa after heat treatment and quenching-tempering.
  • Versatile Material Grades: From Grade 4.8 for general-purpose fastening to Grade 10.9/12.9 for high-load structural connections.
  • Multiple Surface Finishes: Zinc plating for indoor corrosion protection; hot-dip galvanizing and Dacromet for outdoor, humid, or chemically aggressive environments.
  • Precision Manufacturing: Cold forging and CNC machining ensure dimensional accuracy and consistent thread quality, fully compliant with GB 21-1976 tolerances.
  • Full Traceability: Mill test certificates and third-party inspection reports (SGS, BV) available upon request.
Technical Specifications
Measurement System INCH, Metric
Standard DIN, ANSI, GB, JIS, BSW, GOST
Process Cold Forging
Finish Zinc Plated
Load Capacity Medium Duty
Usage For Fastening Metal To Metal
HS Code 7318151001
Customization Services
We offer comprehensive OEM and ODM services to meet your specific requirements:
  • Custom head styles, drive types (Phillips H / Pozidriv Z), and thread designs
  • Special lengths, diameters, and tolerances
  • Specific material grades and surface finishes
  • Custom packaging with your branding (labels, boxes, bags, blister packs)
  • Logo engraving on screw heads
Why Choose Us
  • Professional fastener manufacturer with over 10 years of export experience
  • Advanced automatic cold heading and thread rolling equipment ensuring consistent quality and fast delivery
  • Strict quality control system from raw material sourcing to finished product
  • Competitive factory-direct pricing with no middlemen
  • Responsive customer service and technical support
  • Flexible MOQ to accommodate both trial orders and bulk shipments
Product Images
Various specifications of cross recessed raised countersunk head screws packaged in organized containers Cross recessed raised countersunk head screws in different sizes and finishes displayed together for comparison Industrial packaging of cross recessed raised countersunk head screws ready for shipment and distribution
Packaging Options
Bolts are packed in neutral packaging boxes with standard quantities arranged in small cartons. Custom packaging configurations are available upon request. Small cartons are consolidated into larger master cartons for secure transportation. Palletized units are wrapped with waterproof film and reinforced with packaging straps, with custom shipping marks available.
Packaging Images
Cross recessed raised countersunk head screws in industrial packaging boxes showing organized storage Bulk packaging of cross recessed raised countersunk head screws in secure cartons for shipping Custom packaging solutions for cross recessed raised countersunk head screws with branding options Palletized cross recessed raised countersunk head screw shipment with waterproof wrapping for protection Final packaged cross recessed raised countersunk head screws ready for shipment and delivery
Contact Us
Email: rainting@ybfasteners.com
Tags: 

Single Coil Spring Washer  

Stainless Steel Spring Washers  

Square Steel Washers

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Good price online

Products Details

Home > Products >
Spring Lock Washer
>
Custom GB21 Small Hexagon Head Bolt Stainless Steel
All Category

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

Precision Turned Components

Plastic Bolt
name
  • name
  • name
  • name
  • name
  • name

Custom GB21 Small Hexagon Head Bolt Stainless Steel

Brand Name: YONGBIAO
Model Number: GB21
MOQ: 50000
Price: Negontiation
Packaging Details: Plastic Bag / Paper Box
Payment Terms: T/T
Detail Information
Product Description
Detail Information
Place of Origin:
China
Brand Name:
YONGBIAO
Certification:
ISO 9001
Model Number:
GB21
Finish:
Zinc Plated
Sample:
Free Samples
Usage:
For Fastening Metal To Metal
Measurement System:
INCH, Metric
Standard:
DIN, ANSI, GB, JIS, BSW, GOST
Connection:
Common Bolt
Quality:
100% Inspection
Minimum Order Quantity:
50000
Price:
Negontiation
Packaging Details:
Plastic Bag / Paper Box
Delivery Time:
7-25Days
Payment Terms:
T/T
Supply Ability:
500 Tons/month
Highlight:

Custom GB21 hexagon head bolt

,

Stainless steel small bolt

,

Hexagon head bolt with washer

Product Description
Custom GB21 Small Hexagon Head Bolt Stainless Steel
GB21 Small Hexagon Head Bolts (Small Hex Head Bolts per GB 21-1976) are Chinese national standard fasteners featuring a compact hexagonal head design with smaller across-flats dimensions compared to standard GB30 hex bolts.
Key Features
  • Compact Head Profile: Reduced hex head width enables installation in tight spaces where standard hex bolts cannot fit, without compromising clamping force.
  • High Tensile Strength: Available up to Grade 12.9 with nominal tensile strength reaching 1,000 MPa after heat treatment and quenching-tempering.
  • Versatile Material Grades: From Grade 4.8 for general-purpose fastening to Grade 10.9/12.9 for high-load structural connections.
  • Multiple Surface Finishes: Zinc plating for indoor corrosion protection; hot-dip galvanizing and Dacromet for outdoor, humid, or chemically aggressive environments.
  • Precision Manufacturing: Cold forging and CNC machining ensure dimensional accuracy and consistent thread quality, fully compliant with GB 21-1976 tolerances.
  • Full Traceability: Mill test certificates and third-party inspection reports (SGS, BV) available upon request.
Technical Specifications
Measurement System INCH, Metric
Standard DIN, ANSI, GB, JIS, BSW, GOST
Process Cold Forging
Finish Zinc Plated
Load Capacity Medium Duty
Usage For Fastening Metal To Metal
HS Code 7318151001
Customization Services
We offer comprehensive OEM and ODM services to meet your specific requirements:
  • Custom head styles, drive types (Phillips H / Pozidriv Z), and thread designs
  • Special lengths, diameters, and tolerances
  • Specific material grades and surface finishes
  • Custom packaging with your branding (labels, boxes, bags, blister packs)
  • Logo engraving on screw heads
Why Choose Us
  • Professional fastener manufacturer with over 10 years of export experience
  • Advanced automatic cold heading and thread rolling equipment ensuring consistent quality and fast delivery
  • Strict quality control system from raw material sourcing to finished product
  • Competitive factory-direct pricing with no middlemen
  • Responsive customer service and technical support
  • Flexible MOQ to accommodate both trial orders and bulk shipments
Product Images
Various specifications of cross recessed raised countersunk head screws packaged in organized containers Cross recessed raised countersunk head screws in different sizes and finishes displayed together for comparison Industrial packaging of cross recessed raised countersunk head screws ready for shipment and distribution
Packaging Options
Bolts are packed in neutral packaging boxes with standard quantities arranged in small cartons. Custom packaging configurations are available upon request. Small cartons are consolidated into larger master cartons for secure transportation. Palletized units are wrapped with waterproof film and reinforced with packaging straps, with custom shipping marks available.
Packaging Images
Cross recessed raised countersunk head screws in industrial packaging boxes showing organized storage Bulk packaging of cross recessed raised countersunk head screws in secure cartons for shipping Custom packaging solutions for cross recessed raised countersunk head screws with branding options Palletized cross recessed raised countersunk head screw shipment with waterproof wrapping for protection Final packaged cross recessed raised countersunk head screws ready for shipment and delivery
Contact Us
Email: rainting@ybfasteners.com
Tags: 

Single Coil Spring Washer

Stainless Steel Spring Washers

Square Steel Washers

Related Products
Smooth Surface Spring Lock Washer 4.2 Mm - 35.5 Mm Serrated Flat Washer

Smooth Surface Spring Lock Washer 4.2 Mm - 35.5 Mm Serrated Flat Washer

Get Best Price
140 - 300 HV Stainless Steel Lock Washers DIN Standard External Tooth Lock Washer

140 - 300 HV Stainless Steel Lock Washers DIN Standard External Tooth Lock Washer

Get Best Price
Grade 8.8 Spring Lock Washer M3 - M100 Internal Tooth Lock Washer

Grade 8.8 Spring Lock Washer M3 - M100 Internal Tooth Lock Washer

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Stainless Steel Serrated Lock Washers Rust Proof Washer With Teeth Inside

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Durable Spring Lock Washer M16 M20 Square Washer Grade 8.8 For Fastening Solutions

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