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Home Product M8x12 Metric External Hex Bolts DIN 933 High Strength Stainless Steel Fasteners
Metric external hexagonal bolts M8*12

M8x12 Metric External Hex Bolts DIN 933 High Strength Stainless Steel Fasteners

Metric hex bolts M8x12
M8 external hex bolts
M8x12 hex head bolts
Metric external hexagonal bolts M8*12
Metric hex bolts M8x12, also known as M8 external hex bolts, feature a standardized hexagonal head for secure fastening. These M8x12 hex head bolts are made of durable materials like steel or stainless steel, with optional zinc-plated or plain finishes. Ideal for construction, automotive, and machinery assemblies requiring precise metric measurements and reliable torque transmission.
Categories:Fasteners & Fixings
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Product Description

The Metric hex bolts M8x12, also known as M8 external hex bolts or M8x12 hex head bolts, are standardized fasteners designed for industrial applications requiring precise dimensional accuracy. These bolts feature an 8mm nominal diameter (M8) and 12mm length under the head, with a full hexagon head design for optimal wrench grip. Manufactured from carbon steel or stainless steel, they typically comply with DIN 931/ISO 4014 standards, offering tensile strengths ranging from 8.8 to 10.9 grades. The zinc-plated or galvanized variants provide corrosion resistance, suitable for operating temperatures between -20°C and +120°C. Widely used in machinery assembly, automotive components, and structural frameworks, these bolts ensure high load-bearing capacity and vibration resistance. While their compact M8x12 size offers space efficiency in tight installations, the short shank length limits applicability in thick-material fastening scenarios requiring deeper thread engagement. Proper torque application is critical to prevent head stripping due to the reduced contact surface of the external hex design.
Parameter Specification
Product Type Metric hex bolts M8x12, M8 external hex bolts, M8x12 hex head bolts
Nominal Diameter (d) 8 mm
Thread Pitch 1.25 mm (Coarse Thread)
Length (L) 12 mm
Head Style Hexagon (External)
Material Grade Class 8.8 (Medium Carbon Steel)
Surface Finish Zinc Plated/Plain/Other Optional Coatings
Standards ISO 4014, DIN 931, ASME B18.2.3.6M
Tensile Strength 800 MPa (min)
Yield Strength 640 MPa (min)
Hardness 250-320 HV
Thread Length 16 mm (Standard for L≤125 mm)
Hex Key Size 13 mm (Wrench Across Flats)
question:What should I do if the received items have cut labels?
answer:Labels may be removed per brand policies. Contact us with order details for resolution.
question:Does your company provide technical selection services?
answer:Yes, we offer technical consultation and product selection support. Contact sales for assistance.
question:What shipping methods do you support?
answer:We support DHL, Fedex, UPS, and other carriers. Logistics will be arranged upon order confirmation.
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 should I do if the received items have cut labels?
answer:Labels may be removed per brand policies. Contact us with order details for resolution.
question:Does your company provide technical selection services?
answer:Yes, we offer technical consultation and product selection support. Contact sales for assistance.
question:What shipping methods do you support?
answer:We support DHL, Fedex, UPS, and other carriers. Logistics will be arranged upon order confirmation.
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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