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Home Product M4*25 Metric External Hex Bolt DIN 933 Stainless Steel A2-70 Zinc Plated Fastener
Metric external hexagonal bolts M4*25

M4*25 Metric External Hex Bolt DIN 933 Stainless Steel A2-70 Zinc Plated Fastener

M4x25 Hex Bolt
Metric Hex Bolt M4-25
External Hex Screw 25mm
Metric external hexagonal bolts M4*25
M4x25 Hex Bolt, Metric Hex Bolt M4-25, External Hex Screw 25mm, manufactured in steel or zinc-plated finish. Designed for machinery, construction, and industrial use. Compliant with ISO/DIN standards, ensuring durability and secure fastening. Length: 25mm, M4 thread size.
Categories:Fasteners & Fixings
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Product Description

The M4x25 Hex Bolt is a metric external hexagonal fastener designed for robust assembly in machinery and structural applications. This Metric Hex Bolt M4-25 is engineered with a 4mm nominal diameter, 25mm total length, and a hex head width of 7mm for standard wrench compatibility. Manufactured from grade 8.8 carbon steel with zinc-plated corrosion resistance, it meets ISO 4017 standards, ensuring high tensile strength (800 MPa) and a torque range of 3.2-4.6 N·m. The External Hex Screw 25mm features a partial thread length of 16mm (≈64% of total length) and operates in temperatures from -20°C to +120°C. Ideal for automotive, construction, and industrial equipment, its key advantages include vibration resistance and easy installation with common tools, though it requires precise hole alignment. The bolt's compact design suits confined spaces while maintaining secure fastening in high-stress environments.
Parameter Specification
Product Model Metric External Hexagonal Bolts M4x25
Thread Size M4 (4mm)
Thread Length 25mm
Thread Pitch 0.7mm
Head Type External Hexagonal Head
Head Height 2.8mm
Hex Width 7mm
Material Carbon Steel / Stainless Steel A2
Surface Finish Zinc Plated / Plain / Dacromet
Strength Class 8.8 / A2-70
Standards DIN 931 / ISO 4014
question:Do you provide technical selection services?
answer:Yes, we offer technical selection services to help you choose the most suitable product configurations.
question:Can you provide upgraded or alternative models?
answer:Yes, we offer upgraded or compatible alternative models based on product availability and requirements.
question:Is after-sales technical support available?
answer:Yes, we provide professional technical support for installation, troubleshooting, and product optimization post-purchase.
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:Do you provide technical selection services?
answer:Yes, we offer technical selection services to help you choose the most suitable product configurations.
question:Can you provide upgraded or alternative models?
answer:Yes, we offer upgraded or compatible alternative models based on product availability and requirements.
question:Is after-sales technical support available?
answer:Yes, we provide professional technical support for installation, troubleshooting, and product optimization post-purchase.
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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