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Home Product M20x90 Half Thread Hex Bolt External Hexagonal, High Strength Stainless Steel, DIN 933
Half thread external hexagonal bolt M20*90

M20x90 Half Thread Hex Bolt External Hexagonal, High Strength Stainless Steel, DIN 933

External Hex Bolt M20
M20x90 Hex Bolt
Half Thread Hex Bolt
Half thread external hexagonal bolt M20*90
External Hex Bolt M20, also known as M20x90 Hex Bolt, features a half-thread design for secure fastening with partial threading. Made from high-strength steel, this Half Thread Hex Bolt combines a hexagonal head for easy wrench grip and durable construction. Ideal for applications requiring adjustable clamping force.
Categories:Fasteners & Fixings
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Product Description

The **External Hex Bolt M20** (M20x90 Hex Bolt) is a high-strength, half-thread hex bolt designed for robust mechanical fastening. With a nominal diameter of 20mm and a length of 90mm, this **Half Thread Hex Bolt** features a partially threaded shank (thread length approximately 45mm) and a full hexagonal head for secure wrench engagement. Constructed from grade 8.8 carbon steel or optional stainless steel (A2/A4), it offers tensile strength up to 800 MPa and operates reliably in temperatures from -50°C to 250°C. The bolt complies with DIN 931 standards and includes a zinc-plated or hot-dip galvanized finish for corrosion resistance. Ideal for structural applications in construction, automotive, and heavy machinery, its **M20x90 Hex Bolt** design ensures easy installation and disassembly. Key advantages include load-bearing stability and vibration resistance, though alignment precision is required to avoid shear stress. Typical uses include flange connections, equipment assembly, and steel framework anchoring.
Parameter Specification
Product Type Half Thread External Hexagonal Bolt
Designation External Hex Bolt M20, M20x90 Hex Bolt
Nominal Diameter M20 (20mm)
Thread Length 45mm (Half Thread Design)
Total Length 90mm
Head Height 12.7mm
Hexagon Size 30mm (AF Width)
Material Grade Carbon Steel Grade 8.8
Surface Treatment Zinc Plated (ASTM B633)
Thread Standard ISO 4017 / DIN 931
Proof Load 800 MPa
Tensile Strength ≥830 MPa
Recommended Torque 420-430 N·m
Temperature Range -50°C to +250°C
question:Why should we purchase from your company?
answer:As Asia's leading industrial automation supplier with 20 years of experience, we ensure reliability, quality, and trust, backed by 85% repeat customers.
question:Why can other suppliers source discontinued models you can't offer?
answer:Some suppliers may use refurbished parts or outdated stock. We prioritize authenticity and reliability to safeguard your operations from risks.
question:How do you handle failures caused by refurbished products post-purchase?
answer:We guarantee 100% genuine products. If proven otherwise, we replace with new items or refund immediately, honoring our service commitment.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why should we purchase from your company?
answer:As Asia's leading industrial automation supplier with 20 years of experience, we ensure reliability, quality, and trust, backed by 85% repeat customers.
question:Why can other suppliers source discontinued models you can't offer?
answer:Some suppliers may use refurbished parts or outdated stock. We prioritize authenticity and reliability to safeguard your operations from risks.
question:How do you handle failures caused by refurbished products post-purchase?
answer:We guarantee 100% genuine products. If proven otherwise, we replace with new items or refund immediately, honoring our service commitment.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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