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Home Product M5*25 Metric External Hex Bolts | Stainless Steel Hex Head Screws for Automotive & Machinery
Metric external hexagonal bolts M5*25

M5*25 Metric External Hex Bolts | Stainless Steel Hex Head Screws for Automotive & Machinery

Metric hex bolts M5x25
M5 external hex screws
DIN 931 hex bolts
Metric external hexagonal bolts M5*25
Metric hex bolts M5x25, M5 external hex screws compliant with DIN 931 standards. Zinc-plated steel construction ensures corrosion resistance. Designed for machinery, equipment, and structural fastening applications requiring precise metric dimensions.
Categories:Fasteners & Fixings
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Product Description

The Metric hex bolts M5x25, also known as M5 external hex screws, are standardized fasteners conforming to DIN 931 hex bolts specifications. These 25mm-long bolts feature a 5mm diameter threaded shaft with a 8mm hexagonal head, engineered for applications requiring high tensile strength up to 8.8 grade. Typically manufactured from carbon steel with zinc-plated or hot-dip galvanized finishes, they operate effectively in temperature ranges from -50°C to +150°C. Widely used in machinery assembly, automotive frameworks, and structural engineering, these DIN 931-compliant bolts offer reliable mechanical fastening with superior corrosion resistance. Their primary advantages include standardized dimensions for universal compatibility and robust shear strength, while potential limitations involve requiring precise torque control during installation to prevent thread deformation.
Parameter Specification
Thread Size M5
Thread Pitch 0.8 MM
Length 25 MM
Head Style External Hexagon (DIN 931)
Hexagon Width 8 MM
Material Carbon Steel / Stainless Steel A2-70
Tensile Strength 8.8 Grade / 700 MPA
Surface Treatment Zinc Plated / Plain / Dacromet
Thread Type Partial Thread (DIN 931)
Drive Type Hex Key 8 MM
Standards DIN 931 / ISO 4014
Head Height 5 MM
Thread Length 16 MM
Weight Approx 3.2 Grams
question:What is the warranty period?
answer:Our products come with a 1-year warranty covering manufacturing defects.
question:How are refurbished product faults handled?
answer:Refurbished products with verified faults receive a replacement or refund within 30 days.
question:What shipping methods do you offer?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
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:What is the warranty period?
answer:Our products come with a 1-year warranty covering manufacturing defects.
question:How are refurbished product faults handled?
answer:Refurbished products with verified faults receive a replacement or refund within 30 days.
question:What shipping methods do you offer?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
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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